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Straight truckConfiguration 1
(Applies to all 2 and 3 axle trucks.)
DIMENSION LIMIT
Overall Length Max 12.5
Width Max 2.6
Height Max 4.15
Wheelbase Not Controlled
Effective Overhang Max 4.0
Winter Weight Winter Weight
Steering Axle 7,300 7,300 5,500 5,500
Single Axle 9,100 10,000 8,200 10,000
Tan. Axle Group 17,000 18,000 14,500 18,000
Two Axles 16,400 17,300 13,700 15,500
Three Axles 24,300 25,300 20,000 23,500
August, 2019
Drive Axle Group
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
Gross Vehicle Weight
DIMENSION LIMITS (m)
INTERAXEL SPACINGS
Min 1.0
Max 1.85Tandem Axle Spread
Min 3.0Single Axle to Tandem
Axle
Min 3.0Single Axle to
Single Axle
Primary Secondary and Municipal
MAXIMUM WEIGHT LIMITS (kg)
Length
Interaxle Spacing
Wheelbase Effective Overhang
Truck ‐ Pony Trailer CombinationConfiguration 2
(Applies to all 2 and 3 axle trucks in combination with a pony trailer.)
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 20.0
Length Max 12.5
Wheelbase Not Controlled
Effective Overhang Max 4.0
Hitch Offset Max 1.8
Length Max 12.5
Wheelbase Min 6.25
Winter Weight Winter Weight
Steering Axle 7,300 7,300 5,500 5,500
Single Axle 9,100 10,000 8,200 10,000
Tan. Axle Group 17,000 18,000 14,500 18,000
Effective Overhang Max 4.0 Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Tridem Axle 21,000 21,000 20,000 21,000
Note1: Dimension limits do not apply to a pony trailer with a Gross Vehicle Weight Rating of less than 10 000 kg.
August, 2019
Note2: The maximum effective overhang of 4.0 m applies to a pony trailer manufactured after June 30, 1988. For a pony trailer manufactured before July 1, 1988,
the load is restricted to an effective overhang of 4.0 m or the rear of the trailer, whichever is greater.
33,500
33,50028,20035,30033,4003 axle truck, single
axle trailer
36,50033,70038,30037,4002 axle truck, tridem
axle trailer
44,50040,00046,30045,3003 axle truck, tridem
axle trailer
41,50034,50043,30041,3003 axle truck, tandem
axle trailer
25,50021,90027,30025,5002 Axle truck, Single
axle trailer
Min 3.0
28,20035,30033,4002 axle truck, tandem
axle trailer
TRUCK
PONY TRAILER
Min 1.0
Max 1.85
Tandem Axle Group
Spread
DIMENSION LIMITS (m)
Min 1.0
Max 1.85Tandem Axle Spread
MAXIMUM WEIGHT LIMITS (kg)
Primary Secondary and Municipal
Tridem Axle Group
Spread
Drive Axle Group
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
Gross Vehicle Weight
Min 2.5
Max 2.6
Min 2.4
Max 2.5
INTERAXEL SPACINGS
Track WidthPony Trailer Axle Group
Tandem to Tridem Axle
Tandem to Tandem Axle
Single Axle to Tridem
Axle
Single Axle to Tandem
Axle
Single Axle to Single Axle
Min 5.5
Min 5.0
Min 5.0
Min 3.0
Overall Length
Box Length
Trailer Length
Wheelbase
Interaxle Spacing Interaxle Spacing
Trailer WheelbaseHitch Offset
Truck ‐ Full Trailer CombinationConfiguration 3
(Applies to all 2 and 3 axle trucks in combination with a full trailer or semi0trailer and converter dolly.)
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 20.0
Length Max 12.5
Wheelbase Not Controlled
Effective Overhang Max 4.0
Hitch Offset Max 1.8
Length Max 12.5
Wheelbase Min 6.25
Winter Weight Winter Weight
Steering Axle 7,300 7,300 5,500 5,500
Single Axle 9,100 10,000 8,200 10,000
Tan. Axle Group 17,000 18,000 14,500 18,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
2 axle trailer 17,000 17,000 16,400 17,000
3 axle trailer 24,000 24,000 22,700 24,000
4 axle trailer 31,000 31,000 29,000 31,000
2 axle trailer 41,300 42,300 36,400 40,500
3 axle trailer 48,300 49,300 42,700 47,500
4 axle trailer 55,300 56,300 49,000 54,500
Note 1: The maximum allowable weight of a full trailer is restricted
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
3 axle truck with a:
Tandem to Tandem Axle Min 5.0
Single Axle to Tandem
AxleMin 3.0
Full Trailer GVW
17,00014,50017,00017,0002 axle truck with 2, 3,
or 4 axle trailer
Gross Vehicle Weight
2 Axle truck, Single
axle trailer33,400 34,300 28,200 32,500
Track WidthMin 2.5
Max 2.6
Full Trailer Axle Group
Drive Axle Group
INTERAXEL SPACINGS
3 axle truck with a:
Primary Secondary and Municipal
Tandem Axle Group
Spread
Min 1.0
Max 1.85
DIMENSION LIMITS (m)
TRUCK
FULL TRAILER
MAXIMUM WEIGHT LIMITS (kg)
Min 1.0
Max 1.85Tandem Axle Spread
Trailer Length
Wheelbase
Interaxle Spacing Interaxle Spacing Interaxle Spacing
WheelbaseHitch Offset
Box Length
Overall Length
Twin Steer Tandem Drive TruckConfiguration 4
DIMENSION LIMIT
Overall Length Max 12.5
Width Max 2.6
Height Max 4.15
TRUCK
Wheelbase Not Controlled
Tandem Steer Min 1.0
Spread Max 1.85
Tandem Drive Min 1.0
Spread Max 1.85
Effective Overhang Max 4.0
INTERAXEL SPACINGS
Tandem to Tandem Axle Min 5.0
Winter Weight Winter Weight
Steering Axle 13,600 13,600 11,000 11,000
Drive Axle 17,000 18,000 14,500 18,000
Gross Vehicle Weight 30,600 31,600 25,500 29,000
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.August, 2019
DIMENSION LIMITS (m)
MAXIMUM WEIGHT LIMITS (kg)
Primary Secondary and Municipal
Interaxle Spacing
Wheelbase
EffectiveOverhang
Twin Steer Tandem Drive Truck Pony Trailer Combination
Configuration 5
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 20.0
Wheelbase Not Controlled
Tandem Streer Min 1.0
Spread Max 1.85
Tandem Drive Min 1.0
Spread Max 1.85
Effective Overhang Max 4.0
Hitch Offset Max 1.8
Length Max 12.5
Wheelbase Min 6.25
Tandem Axle Group Min 1.0 Winter Weight Winter Weight
Spread Max 1.85 Steering Axle 13,600 13,600 11,000 11,000
Tridem Axle Group Min 2.4 Drive Axle 17,000 18,000 14,500 18,000
Spread Max 2.5
Track Width Min 2.5 Single Axle 9,100 10,000 8,200 10,000
Max 2.6 Tandem Axle 17,000 18,000 14,500 18,000
Effective Overhang Max 4.0 Tridem Axle 21,000 21,000 20,000 21,000
Gross Vehicle Weight
Tandem Axle to Min 3.0 Truck, single axle 39,700 41,600 33,700 39,000
Single Axle trailer
Tandem Axle to Min 5.0 Truck, tandem axle 47,600 49,600 40,000 47,000
Tandem Axle trailer
Tandem Axle to Min 5.5 Truck, tridem axle 51,600 52,600 45,500 50,000
Tridem Axle trailer
Note1: Dimension limits do not apply to a pony trailer with a Gross Vehicle Weight Rating of less than 10 000 kg.
August, 2019
PONY TRAILER
INTERAXEL SPACINGS
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
DIMENSION LIMITS (m)
MAXIMUM WEIGHT LIMITS (kg)
Pony Trailer Axle Group
TRUCK
Note2: The maximum effective overhang of 4.0 m applies to a pony trailer manufactured after June 30, 1988. For a pony trailer manufactured before July 1, 1988,
the load is restricted to an effective overhang of 4.0 m or the rear of the trailer, whichever is greater.
Primary Secondary and Municipal
Configuration 6
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 20.0
Length Max 12.5
Wheelbase Not Controlled
Effective Overhang Max 4.0
Hitch Offset Max 1.8
Length Max 12.5
Wheelbase Min 6.25
Winter Weight Winter Weight
Steering Axle 13,600 13,600 11,000 11,000
Drive Axle 17,000 18,000 14,500 18,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
2 axle trailer 17,000 17,000 16,400 17,000
3 axle trailer 24,000 24,000 22,700 24,000
4 axle trailer 31,000 31,000 29,000 31,000
2 axle trailer 47,600 48,600 41,900 46,000
3 axle trailer 54,600 55,600 48,200 53,000
4 axle trailer 61,600 62,500 54,500 54,500
Note 1: The maximum allowable weight of a full trailer is restricted
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
Twin Steer Tandem Drive Truck ‐ Pony
Trailer Combination
4 axle truck with a:
Gross Vehicle Weight
Single Axle to Tandem
AxleMin 3.0
4 axle truck with a:
Tandem to Tandem Axle Min 5.0
Track WidthMin 2.5
Max 2.6
INTERAXEL SPACINGS
Full Trailer GVWSingle Axle to Single Axle Min 3.0
Tandem Axle Group
Spread
Min 1.0
Max 1.85
Full Trailer Axle Group
DIMENSION LIMITS (m)
TRUCK
MAXIMUM WEIGHT LIMITS (kg)
FULL TRAILER
Primary Secondary and Municipal
Min 1.0
Max 1.85Tandem Axle Spread
Interaxle SpacingInteraxle Spacing
Trailer Wheelbase
Interaxle Spacing
Wheelbase Hitch Offset
Overall Length
Box Length
Trailer Length
Configuration 7
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 16.2
Wheelbase 1 Not Controlled
Length Max 16.5
Winter Weight Winter Weight
Steering Axle 6,000 6,000 6,000 6,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Spread 2.4m‐3.0m 21,000 21,000 20,000 21,000
Spread >3.0m‐3.6m 23,000 23,000 20,000 23,000
Spread >3.0m‐3.6m 2 24,000 24,000
Spread >3.6m‐3.7m 24,000 24,000 20,000 24,000
6.2 or less 12.50
> 6.2 to 6.3 12.47
> 6.3 to 6.4 12.40
> 6.4 to 6.5 12.33
> 6.5 to 6.6 12.27
> 6.6 to 6.7 12.20 Spread 2.4m‐3.0m 44,000 45,000 40,500 45,000
> 6.7 to 6.8 12.13 Spread >3.0m‐3.6m 46,000 47,000 40,500 47,000
> 6.8 to 6.9 12.07 Spread >3.0m‐3.6m 2 47,000 48,000
> 6.9 to 7.0 12.00 Spread >3.6m‐3.7m 47,000 48,000 40,500 48,000
> 7.0 to 7.1 11.93 1 The wheelbase limit only applies to a truck tractor manufactured after June 30, 1988. The truck tractor
> 7.1 to 7.2 11.87
August, 2019
wheelbase can be a maximum of 7.2m if the corresponding wheelbase of the semi‐trailer is not greater than the
limits in the table on the left.
Truck Tractor Semi‐trailer Combination
40,0003 axle truck, tan. Axle
trailer
26,00024,200Max Semi‐
Trailer
Wheelbase (m)
1Truck Tractor
Wheelbase (m)
34,00028,70034,00032,1003 axle truck, single
axle trailer
Tandem to Tridem Axle Min 5.5
Tandem Axle SpreadMin 1.0
Max 1.85
WheelbaseMin 6.25
Max 12.5
Max 2.0 m
RadiusKingpin Setback
Primary Secondary and Municipal
Gross Vehicle Weight
Tandem Axle Group
Spread
Min 1.0
Max 1.85
Effective Overhang
INTERAXEL SPACINGS
Single Axle to Single,
Tandem or Tridem AxleMin 3.0
Tri. Axle Group:
42,00035,00042,000
Tandem Axle to Tandem
AxleMin 5.0
26,00022,4002axle truck, single axle
trailer
34,00028,70034,00032,1002 axle truck, tan. axle
trailer
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
2 The max allowable weight on a tridem axle group on a semi‐trailer with a spread greater than 3.0 m up to 3.6 m is 24 000 kg and the max allowable gvw is 47,000
kg summer and 48,000 kg winter on provincial highways or portions of provincial highways listed in Appendix E of The Vehicle Weight and Dimension Regulations,
2010.
DIMENSION LIMITS (m)
TRUCK TRACTOR
MAXIMUM WEIGHT LIMITS (kg)
SEMI TRAILER
Max 35% of
wheelbase
Semi Trailer Axle Group
Tridem Axle Group
Spread
Min 2.4
Max 3.7
Track WidthMin 2.5
Max 2.6
Drive Axle
Three axle truck, Tri. Axle trailer with Tri. Spread:
Trailer Length & Box Length
Overall Length
Kingpin Setback
Wheelbase
Effective Overhang
Interaxle SpacingInteraxle Spacing
Wheelbase
Configuration 8
LIMIT
Max 26.0
Max 2.6
Max 4.15
Max 20.0
Max 6.2
Min 6.25
Winter Weight Winter Weight
Steering Axle 6,000 6,000 6,000 6,000
Max 1.8 Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Not Controlled
Winter Weight Winter Weight
2 single axles 50,300 53,500 45,100 53,500
2 single axles 50,300 53,000 45,100 53,000
53,500
46,000
A‐Train (Applies to all truck tractors in combinaton with a semi‐trailer towing either a full trailer or a semi‐traler with an A‐Dolly)
Min 2.5
Max 2.6 Drive Axle
Semi Trailer Axle Group 2
Max 2.0 m
radius MAXIMUM AXLE WEIGHT LIMITS (kg)
Primary Secondary and MunicipalMin 1.0
Max 1.85
INTERAXEL SPACINGS
Min 3.0
Hitch Offset
Track Width
Tandem Axle Group
Spread
DIMENSION LIMITS (m)
TRUCK TRACTOR
Min 1.0
Max 1.85
SEMI TRAILER
DIMENSION
Kingpin Setback
Wheelbase
Box Length
Height
Width
Overall Length
Tandem Axle Spread
Wheelbase
Dimension "A"
Tandem Axle to Tandem
Axle
Single Axle to Single,
Tandem or Tridem Axle
1 The maximum allowable weight on a full trailer is restricted.2 The weight of the second trailer must not exceed the weight of the tractor drive axle(s) plus the weight of the
axle(s) on the first semi‐trailer.
Min 5.0
49,00053,50053,500
38,80046,00042,400
2 Axle Truck
Tractor
Single Axle
1 single axle and 1 tan.
axle group, or 2 tan.
axle groups
2 single axles, 1 single
axle and 1 tan. axle
group, or 2 tan. axle
groups
Tandem Axle
Single Axle
3 Axle Truck
Tractor
Single Axle
2 single axles, 1 single
axle and 1 tan. axle
group, or 2 tan. axle
groups
1 single axle and 1 tan.
axle group, or 2 tan.
axles groups
Tandem Axle
Tandem Axle
August, 2019
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
MAXIMUM GROSS VEHICLE WEIGHT LIMITS (kg)
53,50049,00053,50053,500
53,50049,00053,50053,500
Primary Secondary and MunicipalTRUCK LEAD SEMI TRAILER
2nd SEMI TRAILER or
Full trailer 1,2
Box Length
Overall Length
Kingpin Setback
Wheelbase Wheelbase
Hitch Offset
Interaxle SpacingInteraxle Spacing Interaxle Spacing
Wheelbase
Dimension“A”
B‐TrainConfiguration 9
LIMIT
Max 27.5
Max 2.6
Max 4.15
Max 20.0
Max 6.2
Min 6.25
Winter Weight Winter Weight
Steering Axle 6,000 6,000 6,000 6,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Tridem Axle:
Spread 2.4 ‐ <3.0 m 21,000 21,000 20,000 21,000
Spread 3.0 ‐ 3.1 m 23,000 23,000 20,000 23,000
Spread 3.0 ‐ 3.1 m 4 24,000 24,000
Min 6.25
6.2 or less 17.00
> 6.2 to 6.3 16.53
> 6.3 to 6.4 16.44
> 6.4 to 6.5 16.36
> 6.5 to 6.6 16.27
> 6.6 to 6.7 16.19
> 6.7 to 6.8 16.10
August, 2019
(Applies to all truck tractors in combinations with a semi‐trailer towing another semi‐trailer attached to a fifth
wheel mounted on the rear of the first semi‐trailer.)
Min 1.0
Max 1.85
DIMENSION LIMITS (m)
DIMENSION
Overall Length1
Width
Box Length
Height
TRUCK TRACTOR
Wheelbase
Tandem Axle Group
Spread
Min 2.4
Max 3.1
SECOND SEMI TRAILER
LEAD SEMI TRAILER
Wheelbase 2
Kingpin SetbackMax 2.0 m
radius
Fifth Wheel Position
Track WidthMin 2.5
Max 2.6
3The sum of semi‐trailer wheelbases limit only applies if both semi‐trailers were manufactured after December
31, 1991.
MAXIMUM AXLE WEIGHT LIMITS (kg)
Tandem Axle Group
Spread
Min 1.0
Max 1.85
Primary Secondary and Municipal
Sum of Semi‐Trailer
Wheelbases3Min 2.5
Max 2.6
No more than
0.3 m behind
rearmost axle Drive Axle
Semi Trailer Axle GroupTridem Axle Group
Spread
Track WidthMin 2.5
Max 2.6
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
4The maximum allowable weight on a tridem axle group on a B‐train is 24,000 kg on provincial highways or
portions of provincial highways listed in Appendix E of The Vehicle Weight and Dimension Regulations, 2010.
Tridem Axle to Tridem
AxleMin 6.0
1 The overall length is inclusive of the heavy duty bumper or device designed to reduce the impact of wildlife
collisions that is mounted on the front of the truck tractor.2 The truck tractor wheelbase can be a maximum of 6.8 m if the corresponding sum of the semi‐trailer
wheelbases is not greater than the limits in the following table:
Max sum of Semi‐
Trailer Wheelbase
(m)
Tandem Axle to Tandem
AxleMin 5.0
Wheelbase
Kingpin SetbackMax 2.0 m
radius
INTERAXEL SPACINGS
Single Axle to Single,
Tandem or Tridem AxleMin 3.0
Tandem Axle to Tridem
AxleMin 5.5
Tractor Wheelbase
(m)
Tandem Axle Group
Spread
Min 1.0
Max 1.85
Tridem Axle Group
Spread
Min 2.4
Max 3.1
B‐TrainConfiguration 9
49,100 52,000 43,200 52,000 52,000
57,000 60,000 49,500 60,000 54,500
Tandem Axle Group
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
(Applies to all truck tractors in combinations with a semi‐trailer towing another semi‐trailer attached to a
fifth wheel mounted on the rear of the first semi‐trailer.)
62,500 54,500
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 4Tandem Axle Group 63,500 63,500 54,500 63,500 N/A
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 4Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 463,500 62,500 54,500
3 Axle Truck Tractor
54,500
Tandem Axle GroupTandem Axle Group
Spread 2.4 m ‐ <3.0 m61,000 62,500 54,500
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m
48,700 57,000 54,500
62,500 62,500 54,500 62,500
Tandem Axle Group
62,500 54,500
Tridem Axle Group
Spread 2.4 m ‐ <3.0 mTandem Axle Group 61,000 62,500 54,500 62,500 54,500
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m62,500 62,500 54,500 62,500
63,500Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 4Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 463,500 63,500 54,500 54,500
54,500
4 Applies on provincial highways or portions of provincial highways listed in Appendix E of The Vehicle Weight and Dimension Regulations,2010.
62,500 62,500 54,500 62,500 54,500
Tridem Axle Group
Spread 2.4 m ‐ <3.0 mSingle Axle Group 53,100 55,000 48,700 55,000 54,500
Tandem Axle GroupTandem Axle Group
Spread 3.0 m ‐ 3.1 m
Tridem Axle Group
Spread 3.0 m ‐ 3.1 mSingle Axle Group 55,100 57,000
Tandem Axle Group
Tandem Axle GroupTandem Axle Group
Spread 2.4 m ‐ <3.0 m53,100 55,000 48,700 55,000 54,500
MAXIMUM GROSS VEHICLE WEIGHT LIMITS (kg)
WinterSecondary
Winter
Municipal
Winter
Lead Semi Trailer 2nd Semi Trailer
Primary Highways Secondary/Municipal Highways
2 Axle Truck Tractor
Tandem Axle Group
Tandem Axle GroupTandem Axle Group
Spread 3.0 m ‐ 3.1 m55,100 57,000 48,700 57,000 54,500
Tridem Axle Group
Spread 2.4 m ‐ <3.0 mTandem Axle Group 53,100 55,000 48,700 55,000 54,500
Tridem Axle Group
Spread 3.0 m ‐ 3.1 mTandem Axle Group 55,100 57,000 48,700 57,000 54,500
Tridem Axle Group
Spread 2.4 m ‐ <3.0 m
Tridem Axle Group
Spread 2.4 m ‐ <3.0 m62,500 58,000 54,500 58,000 54,500
Tridem Axle Group
Spread 2.4 m ‐ <3.0 m
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m62,500 60,000 54,500 60,000 54,500
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m
Tridem Axle Group
Spread 2.4 m ‐ <3.0 m62,500 60,000 54,500 60,000 54,500
August, 2019
Tandem Axle Group
C‐TrainConfiguration 10
LIMIT
Max 26.0
Max 2.6
Max 4.15
Max 20.0
Max 6.2
Min 6.25
Winter Weight Winter Weight
Steering Axle 6,000 6,000 6,000 6,000
Max 1.8 Single Axle 9,100 10,000 8,200 10,000
Max 2.0 Tandem Axle 17,000 18,000 14,500 18,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Not Controlled
Winter Weight Winter Weight
2 single axles 50,300 54,000 45,100 54,000
2 single axles 50,300 53,000 45,100 53,000
2 single axles 58,200 60,500 51,400 54,500
August, 2019
(Applies to all truck tractors in combinations with a semi‐trailer towing another full trailer attached to the first
semi‐trailer by means of a C‐Dolly.)
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all
DIMENSION LIMITS (m)
DIMENSION
Overall Length
Width
Height
Box Length
TRUCK TRACTOR
Wheelbase
Tandem Axle SpreadMin 1.0
Max 1.85
SEMI TRAILER
Wheelbase
Kingpin SetbackMax 2.0 m
radius MAXIMUM AXLE WEIGHT LIMITS (kg)
Tandem Axle Group
Spread
Min 1.0
Max 1.85
Primary Secondary and Municipal
Drive Axle
INTERAXEL SPACINGS
Single Axle to Single,
Tandem or Tridem AxleMin 3.0
Semi Trailer Axle Group 2
Track WidthMin 2.5
Max 2.6
GROSS VEHICLE WEIGHT LIMITS (kg)
Hitch Offset
1 single axle and 1 tan.
axle group
54,500
2 single axles, 1 single
axle and 1 tan. axle
group
TRUCK LEAD SEMI TRAILER2nd SEMI TRAILER or
Full trailer 1,2Primary Secondary and Municipal
Tandem Axle to Tandem
AxleMin 5.0
Dimension "A"
1 The maximum allowable weight on a full trailer is restricted.2 The weight of the second trailer must not exceed the weight of the tractor drive axle(s) plus the weight of the
axle(s) on the first semi‐trailer.
C‐Dolly Drawbar Length
46,00038,80046,00042,400
545,000
Single Axle
Tandem Axle
1 single axle and 1 tan.
axle groupTandem Axle
2 Axle Truck
Tractor
3 Axle Truck
Tractor
51,40060,50058,200
54,50051,40060,50058,200
Single Axle
Single Axle
Tandem Axle
55,00060,50060,5001 single axle and 1 tan.
axle groupTandem Axle
Box Length
Overall Length
Kingpin Setback
Wheelbase Wheelbase
Hitch Offset
Interaxle SpacingInteraxle Spacing Interaxle Spacing
Wheelbase
Dimension“A”
Intercity Bus and Recreational VehiclesConfiguration 11
DIMENSION LIMIT
Overall Length Max 14.0
Width Max 2.6
Height Max 4.15
Wheelbase Not Controlled
Effective Overhang Max 4.0
Overall Length ≤ 12.5 m Not Controlled
Overall Length > 12.5 m Min. 3 axles
7,300
6,000
9,100
15,100
17,000
13,300
16,400
22,400
24,300
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
(Applies to all buses and recreational vehicles.)
Min 1.2
Max 1.85Tandem Axle Spread
DIMENSION LIMITS (m)
TRUCK
AXLE REQUIREMENTS
Drive Axle:
Steering Axle
Gross Vehicle Weight
Tandem Axle Group (both with dual tires)
MAXIMUM WEIGHT LIMITS (kg)
Single Half Axle Unit1 Single Axle (dual tires)
Single Axle (single tires)
Tandem Axle Group Single Half Axle Unit1 Single Axle (dual tires)
Single Axle (single tires)
Interaxle Spacing
Length
EffectiveOverhang
Tridem Drive Straight TruckConfiguration 12
DIMENSION LIMIT
Overall Length Max 12.5
Width Max 2.6
Height Max 4.15
Wheelbase Min 6.6
Effective Overhang Max 4.0
Winter Weight Winter Weight
Axle Spread 2.4 ‐ <2.7m 21,000 21,000 20,000 21,000
Axle Spread 2.7 ‐ 2.8m 22,000 22,000 20,000 21,000
Axle Spread 2.4 ‐ <2.7m 28,300 28,300 27,300 28,300
Axle Spread 2.7 ‐ 2.8m 29,300 29,300 27,300 28,300
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
(The information contained in this schedule applies to all trucks equipped with a single steering ale and a tridem
drive axle group.)
Primary Secondary and Municipal
DIMENSION LIMITS (m)
INTERAXEL SPACINGS
MAXIMUM WEIGHT LIMITS (kg)
Min 2.4
Max 2.8Tridem Axle Spread1
Min 3.0Single Axle to Tridem
Axle
Track WidthMin 2.5
Max 2.6
Tridem drive trucks are not allowed to tow a full trailer.
1 All three axles in tridem group must drive (no pusher, tag or lift axles allowed). Drive axle locking devices must be unlocked while operating on a public highway.
Min 27% of drive
axles at all times
to a max 7,300 kg
Steering Axle
Min 27% of drive
axles at all times
to a max 7,300 kg
Min 27% of drive
axles at all times
to a max 7,300 kg
Min 27% of drive
axles at all times
to a max 7,300 kg
Tridem Drive Axle Group
Gross Vehicle Weight
Overall Length
EffectiveOverhang
Wheelbase
Interaxle Spacing
Configuration 13
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 20.5
Wheelbase Min 6.6
Hitch Offset Max 2.6
Effective Overhang Max 4.0
Length Max 12.5
Wheelbase Min 6.25
21,000 20,000
22,000 20,000
Effective Overhang3 Max 4.0
7,200 7,200
7,700 7,700
11,000 11,000
12,000 12,000
15,000 15,000
16,500 16,500
35,500 34,500
36,000 35,000
39,300 38,300
40,300 39,300
43,300 42,300
44,800 43,800
36,000 34,500
37,000 35,000
40,300 38,300
41,300 39,300
44,300 42,300
45,800 43,800
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
MAXIMUM WEIGHT LIMITS (kg)
Min 27% of drive
axles at all times
to a max 7,300 kg
Min 27% of drive
axles at all times
to a max 7,300 kg
DIMENSION LIMITS (m)
Tridem Axle Spread1Min 2.4
Max 2.8
Track WidthMin 2.5
Max 2.6
TRUCK
PONY TRAILER2
Tridem Axle Spread
Tandem Axle Spread
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m
Axle Spread 2.4 ‐ <2.7m
Tridem Drive Axle Group
Pony Trailer
Single Axle with Wheelbase > 7.50 m
Gross Vehicle Weight
Tandem Axle with Wheelbase > 7.50 m
Tandem Axle with Wheelbase 6.25 to 7.50 m
Single Axle with Wheelbase 6.25 to 7.50 m
Tridem Axle with Wheelbase > 7.50 m
Tridem Axle with Wheelbase 6.25 to 7.50 m
Min 1.0
Max 1.85
Track WidthMin 2.5
Max 2.6
INTERAXEL SPACINGS
Min 2.4
Max 2.5
Steering Axle
Axle Spread 2.7 ‐ 2.8m
Truck Axle Group Spread 2.7 to 2.8 m
Tandem Axle to
Tridem AxleMin 5.5
Single Axle to Tridem
AxleMin 3.0
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m
Pony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m
Truck Axle Group Spread 2.4 to <2.7 m
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m
1 All three axles in tridem group must drive
(no pusher, tag or lift axles allowed). Drive
axle locking devices must be unlocked while
operating on a public highway.
Tridem Axle to Tridem
AxleMin 6.0
Tridem Drive Straight Truck‐Pony Trailer
Combination
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m
3 The maximum effective overhang of 4.0 m
applies to a pony trailer manufactured after
June 30, 1988. For a pony trailer
manufactured before July 1, 1988, the load
is restricted to an effective overhang of 4.0
m or the rear of the trailer, whichever is
greater.
2 Dimension limits for pony trailers do not
apply to a pony trailer with a Gross Vehicle
Weight Rating of less than
10,000 kg.
(The information contained in this schedule applies to all trucks equipped with a single steering axle and a tridem drive axle group in
combination with a pony trailer.)
Pony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m
Secondary and
MunicipalPrimary
Configuration 13
Primary and Secondary Municipal
Steering Axle Min 27% of drive axles Min 27% of drive
Tridem Drive Axle Group
Axle Spread 2.4 ‐ <2.7m 21,000 21,000
Axle Spread 2.7 ‐ 2.8m 22,000 21,000
Pony Trailer
Single Axle with Wheelbase 6.25 to 7.50 m 7,200 7,200
Single Axle with Wheelbase > 7.50 m 7,700 7,700
Tandem Axle with Wheelbase 6.25 to 7.50 m 11,000 11,000
Tandem Axle with Wheelbase > 7.50 m 12,000 12,000
Tridem Axle with Wheelbase 6.25 to 7.50 m 15,000 15,000
Tridem Axle with Wheelbase > 7.50 m 16,500 16,500
Gross Vehicle Weight
Truck Axle Group Spread 2.4 to <2.7 m
Pony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m 35,500 35,500
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m 36,000 36,000
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m 39,300 39,300
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m 40,300 40,300
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m 43,300 43,300
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m 44,800 44,800
Truck Axle Group Spread 2.7 to 2.8 m
Pony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m 36,000 35,500
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m 37,000 35,000
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m 40,300 38,300
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m 41,300 39,300
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m 44,300 42,300
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m 45,800 43,800
MAXIMUM WINTER WEIGHT LIMITS (kg)
(The information contained in this schedule applies to all trucks equipped with a single steering axle and a tridem drive axle group in
combination with a pony trailer.)
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not
August, 2019
Tridem Drive Straight Truck‐Pony
Trailer Combination
Tandem Steer Tridem Drive Straight TruckConfiguration 14
DIMENSION LIMIT
Overall Length Max 14.0
Width Max 2.6
Height Max 4.15
Wheelbase1 Min 7.7
Effective Overhang Max 4.0
Winter Weight Winter Weight
Tri. Drive Axle Spread Wheelbase
2.4 ‐ <2.8 Min 7.7
2.8 ‐ <3.0 Min 7.8
3.0 ‐ 3.1 Min 7.9
Axle Spread 2.4 ‐ <2.7 m 21,000 21,000 20,000 21,000
Axle Spread 2.7 ‐ <3.0 m 22,000 22,000 20,000 21,000
Axle Spread 3.0 ‐ 3.1 m 23,000 23,000 20,000 23,000
Axle Spread 2.4 ‐ <2.7 m 34,600 34,600 31,000 32,000
Axle Spread 2.7 ‐ <3.0 m 35,600 35,600 31,000 32,000
Axle Spread 3.0 ‐ 3.1 m 36,600 36,600 31,000 34,000
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
(Applies to all trucks equipped with a tandem steering axle and a tridem drive axle group.)
Tridem drive trucks are not allowed to tow a
full trailer.
DIMENSION LIMITS (m)
TRUCK
Tandem Steer SpreadMin 1.0
Max 1.85
Tridem Drive Spread2Min 2.4
Max 3.1
MAXIMUM WEIGHT LIMITS (kg)
Primary Secondary and Municipal
Track WidthMin 2.5
Max 2.6
1 Axle spreads and minimum wheelbase must
conform to the following:
2 All three axles in tridem drive axle group
must drive (no pusher, tag or lift axles
allowed). Drive axle locking devices must be
unlocked while operating on a highway.
Drive Axle
Gross Vehicle Weight
Min 40% of drive
axles at all times
to a maximum
11,000 kg
Min 40% of drive
axles at all times
to a maximum
11,000 kg
Min 40% of drive
axles at all times
to a maximum
13,600 kg
Min 40% of drive
axles at all times
to a maximum
13,600 kg
Steering Axle
Interaxle Spacing
Wheelbase
Overall Length
EffectiveOverhang
Configuration 15
DIMENSION LIMIT
Overall Length Max 23.0
Width Max 2.6
Height Max 4.15
Box Length Max 21.0
Wheelbase1 Min 7.7
Hitch Offset Max 2.6
Effective Overhang Max 4.0
Length Max 12.5Wheelbase Min 6.25
21,000 20,000
22,000 20,000
23,000 20,000
Effective Overhang4 Max 4.0
7,200 7,200
7,700 7,700
11,000 11,000
12,000 12,000
15,000 15,000
16,500 16,500
41,800 38,200Tri. Drive Axle Spread Wheelbase 42,300 38,700
2.4 ‐ <2.8 Min 7.7 45,600 42,0002.8 ‐ <3.0 Min 7.8 46,600 43,0003.0 ‐ 3.1 Min 7.9 49,600 46,000
51,100 47,500
42,800 38,200
43,300 38,700
46,600 42,000
47,600 43,000
50,600 46,000
52,100 47,500
(Applies to all trucks equipped with a tandem steering axle and a tridem drive axle group in combination with a pony trailer.)
DIMENSION LIMITS (m)
TRUCK
Tandem Steer Axle
Spread
Min 1.0
Max 1.85
Track WidthMin 2.5
Max 2.6
Tridem Axle Spread2Min 2.4
Max 3.1
MAXIMUM WEIGHT LIMITS (kg)
PrimarySecondary and
Municipal
Tandem Axle SpreadMin 1.0
Max 1.85
Steering Axle
Min 40% of drive
axles at all times
to a maximum
13,600 kg
Min 40% of drive
axles at all times
to a maximum
11,000 kg
Track WidthMin 2.5
Max 2.6
Axle Spread 2.4 ‐ <2.7 m
Axle Spread 3.0 ‐ 3.1 m
PONY TRAILER3
Axle Spread 2.7 ‐ <3.0 m
Tridem Axle SpreadMin 2.4
Max 2.5
Tridem Drive Axle Group
Pony Trailer
INTERAXEL SPACINGS Single Axle with Wheelbase 6.25 to 7.50 m
Single Axle to Tridem
AxleMin 3.0
Single Axle with Wheelbase > 7.50 m
Tandem Axle with Wheelbase 6.25 to 7.50 m
Tandem Axle to
Tridem AxleMin 5.5
Tandem Axle with Wheelbase > 7.50 m
Tridem Axle with Wheelbase 6.25 to 7.50 m
Tridem Axle to Tridem
AxleMin 6.0
Tridem Axle with Wheelbase > 7.50 m
Gross Vehicle Weight
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m
3 Dimension limits for pony trailers do not
apply to a pony trailer with a Gross Vehicle
Weight Rating of less than
10,000 kg.4 The maximum effective overhang of 4.0 m applies to a pony trailer manufactured after June 30, 1988. For a pony trailer manufactured before July 1, 1988, the
load is restricted to an effective overhang of 4.0 m or the rear of the trailer, whichever is greater.
Truck Axle Group Spread 2.4 to <2.7 m
2 All three axles in tridem group must drive
(no pusher, tag or lift axles allowed). Drive
axle locking devices must be unlocked while
operating on a public highway.
Pony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m
1 Axle spreads and minimum wheelbase
must conform to the following:
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m
Truck Axle Group Spread 2.7 to <3.0 mPony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m
Tandem Steer Tridem Drive Straight Truck‐
Pony Trailer Combination
August, 2019This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m
Configuration 15(Applies to all trucks equipped with a tandem steering axle and a tridem drive axle group in combination with a pony trailer.)
MAXIMUM WINTER WEIGHT LIMITS (kg) Continued
Municipal
Gross Vehicle Weight
Truck Axle Group Spread 3.0 to 3.1 m
Pony Trailer with a Single Axle and a Wheelbase of 6.25 to 7.50 m 43,800 38,200
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m 44,300 38,700
Pony Trailer with a Tandem Axle and a Wheelbase of 6.25 to 7.50 m 47,600 42,000
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m 48,600 43,000
Pony Trailer with a Tridem Axle and a Wheelbase of 6.25 to 7.50 m 51,600 46,000
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m 53,100 47,500
MAXIMUM WINTER WEIGHT LIMITS (kg)
Municipal
Steering Axle
Tridem Drive Axle Group
Axle Spread 2.4 ‐ <2.7 m 21,000 21,000
Axle Spread 2.7 ‐ <3.0 m 22,000 21,000
Axle Spread 3.0 ‐ 3.1 m 23,000 23,000
Pony Trailer
Single Axle with Wheelbase 6.25 to 7.50 m 7,200 7,200
Single Axle with Wheelbase > 7.50 m 7,700 7,700
Tandem Axle with Wheelbase 6.25 to 7.50 m 11,000 11,000
Tandem Axle with Wheelbase > 7.50 m 12,000 12,000
Tridem Axle with Wheelbase 6.25 to 7.50 m 15,000 15,000
Tridem Axle with Wheelbase > 7.50 m 16,500 16,500
Gross Vehicle Weight
Pony Trailer with a Single Axle & a Wheelbase of 6.25 ~ 7.50 m 41,800 39,200
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m 42,300 39,700
Pony Trailer with a Tandem Axle & a Wheelbase of 6.25 ~ 7.50 m 45,600 43,000
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m 46,600 44,000
Pony Trailer with a Tridem Axle & a Wheelbase of 6.25 ~ 7.50 m 49,600 47,000
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m 51,100 48,500
Pony Trailer with a Single Axle & a Wheelbase of 6.25 ~ 7.50 m 42,800 39,200
Pony Trailer with a Single Axle & a Wheelbase > 7.50 m 43,300 39,700
Pony Trailer with a Tandem Axle & a Wheelbase of 6.25 ~ 7.50 m 46,600 43,000
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m 47,600 44,000
Pony Trailer with a Tridem Axle & a Wheelbase of 6.25 ~ 7.50 m 50,600 47,000
Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m 52,100 48,500
Pony Trailer with a Single Axle and a Wheelbase of 6.25 ~ 7.50 m 43,800 38,200
Pony Trailer with a Single Axle and a Wheelbase > 7.50 m 44,300 38,700
Pony Trailer with a Tandem Axle & a Wheelbase of 6.25 ~ 7.50 m 47,600 42,000
Pony Trailer with a Tandem Axle and a Wheelbase > 7.50 m 48,600 43,000Pony Trailer with a Tridem Axle & a Wheelbase of 6.25 ~ 7.50 m 51,600 46,000Pony Trailer with a Tridem Axle and a Wheelbase > 7.50 m 53,100 47,500
Tandem Steer Tridem Drive Straight Truck‐
Pony Trailer Combination
August, 2019
Primary and
Secondary
Primary and
Secondary
Min 40% of drive
axles at all times to a
maximum 13,600 kg
Min 40% of drive
axles at all times to a
maximum 11,000 kg
Truck Axle Group Spread 2.4 to <2.7 m
Truck Axle Group Spread 2.7 to <3.0 m
Truck Axle Group Spread 3.0 to 3.1 m
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
Configuration 16(Applies to all truck tractors equipped with a tridem drive axle group in combination with a semi‐trailer.)
DIMENSION LIMIT
Overall Length Max 23.5
Width Max 2.6
Height Max 4.15
Box Length Max 16.2
Length Max 16.2
Winter Weight Winter Weight
Spread 2.4 ‐ <2.7 m 21,000 21,000 20,000 21,000
Spread 2.7 ‐ 2.8 m 22,000 22,000 20,000 21,000
Single Axle 9,100 10,000 8,200 10,000
Tandem Axle 17,000 18,000 14,500 18,000
Spread 2.4m‐3.0m 21,000 21,000 20,000 21,000
Spread >3.0m‐3.6m 23,000 23,000 20,000 23,000
Spread >3.0m‐3.6m 2 24,000 24,000
Spread >3.6m‐3.7m 24,000 24,000 20,000 24,000
Single Axle 37,400 38,300 35,500 38,300
Tandem Axle 45,300 46,300 41,800 46,300
Tridem Axle with:
Spread 2.4m‐3.0m 49,300 49,300 47,300 49,300
Spread >3.0m‐3.6m 51,300 51,300 47,300 51,300
Spread >3.0m‐3.6m 2 52,300 52,300
Spread >3.6m‐3.7m 52,300 52,300 47,300 52,300
Single Axle 38,400 39,300 35,500 38,300
Tandem Axle 46,300 47,300 41,800 46,300
Tridem Axle with:
Spread 2.4m‐3.0m 50,300 50,300 47,300 49,300
Spread >3.0m‐3.6m 52,300 51,300 47,300 51,300
Spread >3.0m‐3.6m 2 53,300 53,300
Spread >3.6m‐3.7m 53,300 53,300 47,300 52,300
DIMENSION LIMITS (m)
TRUCK TRACTOR
Tridem Axle Track
Width
Min 2.5
Max 2.6
SEMI TRAILER
Max 2.0 m
Radius
MAXIMUM WEIGHT LIMITS (kg)
Effective OverhangMax 35% of
wheelbase
Primary Secondary and Municipal
Tandem Axle Group
Spread
Min 1.0
Max 1.85
WheelbaseMin 6.25
Max 12.5
Kingpin SetbackMin 27% of drive
axles at all times
to a max 7,300 kg
Min 27% of drive
axles at all times
to a max 7,300 kgTridem Drive Axle
Tridem Axle Group
Spread
Min 2.4
Max 3.7
Track WidthMin 2.5
Max 2.6
Semi Trailer Axle Group
Gross Vehicle Weight
INTERAXEL SPACINGS
Tridem Axle to Single
AxleMin 3.0
Tri. Axle Group:
Tridem Axle to Tandem
AxleMin 5.5
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
August, 2019
Tandem Drive Truck Tractor Semi‐trailer
Combination
Truck Tractor with an axle spread of 2.4 m to <2.7 m combined with a semi‐trailer with a:
2 Applies on provincial highways or portions of
provincial highways listed in Appendix E of
The Vehicle Weight and Dimension
Regulations,2010 .
Min 6.6
Max 6.8Wheelbase
Tridem Axle Spread1Min 2.4
Max 2.8
1 All three axles in tridem group must drive (no
pusher, tag or lift axles allowed). Drive axle
locking devices must be unlocked while
operating on a public highway.
Steering Axle
Min 27% of drive
axles at all times
to a max 7,300 kg
Min 27% of drive
axles at all times
to a max 7,300 kg
Truck Tractor with an axle spread of 2.7 m to 2.8 m combined with a semi‐trailer with a:
Tridem Axle to Tridem
AxleMin 6.0
Configuration 17
Overall Length1 Max 27.5
Width Max 2.6
Height Max 4.15
Box Length Max 20.0
Min 6.6
Max 6.8
Min 1.0
Max 1.85
Min 2.4
Max 2.8
Min 2.5
Max 2.6
Wheelbase Min 6.25 Winter Weight Winter Weight
Spread 2.4 ‐ <2.7 m 21,000 21,000 20,000 21,000
Min 1.0 Spread 2.7 ‐ 2.8 m 22,000 22,000 20,000 21,000
Max 1.85
Min 2.4 Single Axle 9,100 10,000 8,200 10,000
Max 3.1 Tandem Axle 17,000 18,000 14,500 18,000
Track Width Min 2.5 Tridem Axle:
Max 2.6 Spread 2.4 ‐ <3.0 m 21,000 21,000 20,000 21,000
Spread 3.0 ‐ 3.1 m 4 23,000 23,000 20,000 23,000
Wheelbase Min 6.25 Spread 3.0 ‐ 3.1 m 5 24,000 24,000
Min 1.0
Max 1.85
Min 2.4
Max 3.1
Min 2.5
Max 2.6
Tridem Axle Group
Spread
Kingpin Setback
SECOND SEMI TRAILER
INTERAXEL SPACINGS
Max 2.0 m
radiusTandem Axle Group
SpreadTridem Axle Group
Spread
Track Width
Sum of Semi‐Trailer
Wheelbases3Max 17.0
No more than
0.3 m behind
rearmost axle
Kingpin Setback
Fifth Wheel Position
Tandem Axle Group
Spread
Wheelbase
Tandem Axle
Spread2
Tridem Axle Track
Width
Spread
Tridem Axle
Max 2.0 m
radius
Min 27% of drive axles
at all times to a max
7,300 kgTridem Drive Axle
Steering Axle
Min 27% of drive
axles at all times
to a max 7,300 kg
Secondary and Municipal
MAXIMUM AXLE WEIGHT LIMITS (kg)
Min 27% of drive
axles at all times
to a max 7,300 kg
Min 27% of drive
axles at all times
to a max 7,300 kg
Semi Trailer Axle Group 2
Tridem Axle to Tridem
AxleMin 6.0
4The maximum allowable weight on a tridem axle group on a B‐train is 24,000 kg on provincial highways or portions of
provincial highways listed in Appendix E of The Vehicle Weight and Dimension Regulations, 2010.
2 All three axles in tridem group must drive (no pusher, tag or lift axles allowed). Drive axle locking devices must be
unlocked while operating on a public highway.
4 The sum of semi‐trailer wheelbases limit only applies if both semi‐trailers were manufactured after December 31,
1991.
1The overall length is inclusive of the heavy duty bumper or device designed to reduce the impact of wildlife collisions
that is mounted on the front of the truck tractor.
3 The maximum spread on a tridem axle group on a semi‐trailer for in a B‐train combination is 3.1 m
Single Axle to Single,
Tandem or Tridem AxleMin 3.0
Min 5.0
Min 5.5
Tandem Axle to
Tandem AxleTandem Axle to Tridem
Axle
TRUCK TRACTOR
LEAD SEMI TRAILER
Tridem Drive Truck Tractor B‐Train
Combination(Applies to all truck tractors equipped with a tridem drive axle group in combination with a semi‐trailer towing
another semi‐trailer attached to a fifth wheel mounted on the rear of the first trailer.)
Primary
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
August, 2019
Configuration 17
62,300 62,500 56,300 62,500 61,800
62,500 62,500 56,300 62,500 61,800
61,800Tandem Axle GroupTridem Axle Group
Spread 2.4 m ‐ 3.1 m62,500 62,500 61,800
62,500 61,800 62,500 61,800
61,300Tridem Axle Group
Spread 3.0 m ‐ 3.1 Single Axle Group 60,400 61,300 55,500 61,300
Tridem Axle Group
Spread 2.4 m ‐ 3.1 m
59,300 55,500 59,300
Tridem Axle Group
Spread 3.0 m ‐ 3.1
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 563,500 63,500 63,500
62,500 61,800 62,500
Tandem Axle GroupTridem Axle Group
Spread 2.4 m ‐ 3.1 m62,500
59,400 60,300
61,800
60,300
Tridem Axle Group
Spread 3.0 m ‐ 3.1 Single Axle Group 61,400 62,300 62,30055,500
61,800
Tridem Axle Group
Spread 2.4 m ‐ 3.1
Tridem Axle Group
Spread 2.4 m ‐ 3.1 Tandem Axle Group 62,500
62,500
Single Axle GroupTridem Axle Group
Spread 2.4 m ‐ <3.0
62,500
Tractor axle spread 2.7 ~ 2.8 m
Tandem Axle Group Tandem Axle Group
61,800 62,500
55,500 60,300
Tridem Axle Group
Spread 3.0 m ‐ 3.1
Tridem Axle Group
Spread 3.0 m ‐ 3.1 m 563,500 63,500
Tridem Axle Group
Spread 2.4 m ‐ 3.1
Tridem Axle Group
Spread 2.4 m ‐ 3.1 m62,500
58,400Single Axle GroupTridem Axle Group
Spread 2.4 m ‐ <3.0
Tandem Axle GroupTandem Axle Group
Tractor axle spread 2.4 ~ 2.7 m
Municipal
Winter
Secondary
WinterWinter
2nd Semi TrailerLead Semi Trailer
59,300
62,500
62,500
This guide is only a summary of The Vehicle Weight and Dimension Regulations Amendment 2010 and does not include all details.
August, 2019
Tridem Drive Truck Tractor B‐Train
Combination(Applies to all truck tractors equipped with a tridem drive axle group in combination with a semi‐trailer towing
another semi‐trailer attached to a fifth wheel mounted on the rear of the first trailer.)
5 Applies on provincial highways or portions of provincial highways listed in Appendix E of The Vehicle Weight and Dimension Regulations,2010.
63,500
61,80062,50061,80062,500
61,80061,80062,50062,500Tandem Axle GroupTridem Axle Group
Spread 2.4 m ‐ 3.1
61,800
