Greenwood Timber Framing · Teak Hemlock Hickory Wood is the prince of building materials. It’ s a readily available, renewable resource. It is easily worked, stronger than steel

Greenwood Timber Framing7353 148th Ave NE

Redmond, WA 98052(425) 881-3331

[email protected]

On the Web at www.greenwoodtf.com

Index

Part I: Stages of Design1. Stages of Design2. Design Paths3. Wood Choices4. About Trusses5 & 6. Timber frame: Components/terms/definitions

Part II: What Determines Cost7. What Determines Cost8. Timber Style9. Timber & SIP’s

Part III: About Hybrids10. Hybrids11. Crafting12. Equipment13. Timber & SIP’s

Part IV: Greenwood & Riverbend Difference14. The Greenwood difference15. What sets us apart16. We help achieve your dream

mailto:[email protected]

www.greenwoodtf.com

Stages of design

The design steps with checks to confirm budgets along the way...

26 weeks from design to delivery

16 weeks from production agreement to delivery

40 weeks to complete on site construction

HCM is the Home Cost Model

*Guide Spec for Architectural and

Engineering Criteria (Site, Structural, Architectural, Mechanical,

Electrical, Plumbing) Owner Approvals/Sign-Offs

The HCM, or Home-Cost Model, which Greenwood utilizes, offers the ability to budget your house at the conceptual design stage. It also helps us to manage the design, giving our design department the guidelines they need to move forward. The HCM is a line by line identification of the building sub systems, a brief definition of them, and an estimated cost to install. It also generates an Energy Model that calculates the annual energy demands and predicts costs of various fuel sources, including electricity, oil, natural gas, and propane.

We know how to build your dream home!

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Sketch - up

Home -Cost Model

HCMDesign

DevelopmentSchematics

CD’s(blueprints) Bids

HCMUpdated

DD’s

Construction

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Design Paths1. Custom design2. Modify an existing design3. Use an existing design

Design paths

Designing your home... Where do you start? Do you have a site? Do you need to have a designer or an architect? There are a number of questions you have to answer as you begin to plan your home. Greenwood can help you with both the questions and the answers. As you begin to go down the home planning path, there are a number of options that you have. You can start from scratch, you can modify an existing Riverbend design, or you can choose a Riverbend design as it is with no changes.

Custom design Starts from your input

Greenwood TF assists you with developing your dream home design.

You may find that modifying an existing Riverbend design is the best choice. As you can see here, the plan on the right was adjusted from the plan on the left to create what these homeowners wanted, with less effort than starting from scratch.

Functional space includes the rooms we live in. At the beginning, as you’re thinking about how you want to live in those spaces, sketching up an idea is a place to start.


TimberTimber species to choose from:

Douglas Fir, including FSIFSouthern Yellow PineRed and White OakEastern White PineRecycled Fir & Yellow PineCypressWestern Red CedarPort Orford CedarSitka SpruceWhite SpruceTeakHemlockHickory

Wood is the prince of building materials. It’s a readily available, renewable resource. It is easily worked, stronger than steel and with care will outlast most materials. It is naturally resistant to most chemicals. It is familiar to us; it’s used in everything from furniture to timber frames. We think of it as strong and warm. It is undeniably beautiful, easily finished, easy to care for, and flexible. Timbers have been known to perform well in earthquakes and fires. No other single material can do so many things and be acceptable to almost all conditions all the time.

There are hundreds of timber species; many are much more practical than others. Many have been used and are now recycled. The most common species are listed here.

Timber frames are most frequently constructed from red and white oak, Douglas fir, or pine. Previously used timbers are often referred to as salvaged, reclaimed or recycled and there is a growing industry that specializes in salvaging timbers from defunct industrial buildings or fallen logs in the forest.

Timber species for frames are selected based on a number of factors, including color, appearance, relative shrinkage, cost, decay resistance, availability, and the practical maximum length. Other considerations would be the ease of working with, the relative weight, strength, and personal preference.


About Trusses

These are examples of common timber trusses. Trusses define the shape of the roof and vaulted ceiling. When a truss is combined with the post and beams which support it, these parts are called a profile bent, which defines the interior space and the shape of the house. Most houses have 3 to 4 profile bents, which are joined together by wood members such as the top plate (beam located at the top of posts) and mid girt (beams located mid way up the posts). The spacing between the profile bents is called a “bay”.

The secondary rafters or purlins which support the roof between the trusses affect the design of the timber frame. The position of these secondary members is determined by the next layer of materials which are the panels. The panel thickness is governed by the snow loads, wind, roofing materials along with other factors.

Standard king or web truss

Queen post truss

Hammer beam truss

Scissor truss

Modified king truss

Standard collar tie truss

Hammer beam eye brow truss

King post scissor truss

Arched web truss Attic truss Arched hammer beam truss

Decorative scissor

A variety of different truss, post, and beam structures to choose from.


Timber Framing Definitions

Bay: Bays are the areas between bents. A four-bent frame has three bays; a three-bent frame has two bays. The size of a bay is limited by the floor or roof load that a frame must bear, and by the size and strength of the timbers in the frame. In frames of oak or Douglas fir, bays are typically a maximum of 16 feet by 16 feet. In pine frames, they are usually smaller. It is a function of area; a bay can usually get longer as long as it also gets narrower. In commercial buildings with large floor loads, or mountaintop houses with large snow loads, bay sizes must go down or timber sizes must go up.

Beam - Girt: Beams - also called girts - are framing members that run horizontally. If they are part of a bent, they are called bent girts; if they connect two different bents, they are called connecting girts.

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Timber Framing Definitions

Bent: Timber framers often think, talk, design and build in bents. A bent consists of the posts, beams and braces that are within the same plane in a frame. A profile bent forms a cross-sectional plane of the structure, and generally defines its shape. Most houses have three or four profile bents. Wall bents, or ridge bents, run longitudinally; they are perpendicular to profile bents. Timber frames do not have to be designed or built as a series of bents, but it is usually more efficient and cost effective to do so.

Common Rafter: A rafter having no function other than to bear roofing.

Girt: A timber or plate connecting the corner posts of an exterior wooden frame, as a braced frame, at a floor above the ground floor.

Knee Brace: A diagonal member for bracing the angle between two joined members, as a stud or column and a joist or rafter, being joined to each partway along its length.

Plate: Plates are girts that connect the wall posts and support the lower end of rafters.

Post: Posts are the vertical member. King posts and queen posts are vertical members that are part of a truss.

Principal rafter: A diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest.

Purlin: A longitudinal member in a roof frame, usually for supporting common rafters or the like between the plate and the ridge.

Rafter: Rafters support the roof. They run perpendicular to the roof’s ridge, and typically span from a plate to a ridge beam, or from the top of one post to the top of an adjacent higher post. In a long roof plane, they might span from a wall plate to a plate midway up the roof, to the ridge beam at the peak.

Summer beam: One of the major horizontal timbers that connect the vertical posts.

Tie: Any of various structural members, as beams or rods, for keeping two objects, as rafters or the haunches of an arch, from spreading or separating.

What determines cost?

! Shape of the design! Exterior materials and construction! Interior materials and millwork! Timber count and complexity! Panel area ! Building site

What determines cost? There are many factors that will affect the cost of your home. The shape of the design, the materials, the timber frame design, the panel area, and your building site. At Greenwood we work with you from the start to determine what the costs for the entire project will be, not just the timber frame and panel package. We want it all to be successful.

Simplicity saves. Complexity costs.

This is obviously a complex design: large, with multiple hips and valleys. Likely not an inexpensive home to build. When comparing the amount of surface to living area, a ranch is inefficient, a cape is efficient. A two story home is more efficient than a single story – you have the same foundation size, same roof.


Timber Style

Style: artistic and complex

1,000 square feet: 150 timbers

Out of these three examples, this design has one and a half times the timbers in the same square footage, compared to the two designs below. Would the timber frame cost be the same?

Style: traditional


The timber cost will be dependent upon the design and whether it is a full timber frame or a hybrid, especially if the frame involves complex joinery, curves or extra detailing. The timbers are what define the space; they do the work and carry the loads.

In this frame the valleys and jack rafters, rather than the straight forward beams, will add to the cost. Also note the full length posts.

Style: simple hybrid


And in this frame there are just a third of the number of timbers as in the previous frames, simple and true. It is still the same square footage, however, all these examples have a different number of timbers, and therefore are priced differently.


Timber & SIP’s (Structural Insulating Panels)

Timbers combined with SIPs, are the perfect complement to each other. Together they form the ideal match for beauty and integrity. The timbers and panels offer design flexibility, unparalleled energy efficiency, and amazing strength, security, and safety.

The perfect match for beauty and integrity

Have outstanding design flexibility

Unparalleled in energy efficiency

Offer exceptional strength, securityand safety

As the design is being developed, one of the factors that will be determined is the timber and panel cost. The cost of the panels will be dependent upon the floor plan, how complex it is, the wall height, the number and extent of the wall openings, and the complexity of the roof line, which includes dormers, overhangs, and roof pitch.

Floor plan complexity

Wall height

Wall openings

Complexity of roof line including dormers, overhangs and roof pitch

SIP Panel Cost


Hybrids

Many of the homes that Greenwood produces are hybrids. Hybrids are homes that have a reduced number of timbers and utilize structural insulating panels (or SIPS) in some areas of the home that might not be as practical for timbers. With a hybrid, there are fewer timbers to assemble, but there is still the aesthetic impact that timbers bring. There could also be more design flexibility, promoting open spaces as well as the creation of other types of spaces. There could be more design and finishing opportunities. Certain finish products such as tile, slate or stone can be used without having to cut around structural timbers.

In this example you can see where the timbers are in proportion to the entire house. Greenwood offers hybrids because this innovative engineered system allows you to use fewer timbers, capitalize on the structural abilities of Insulspan SIPS, enjoy increased design and finishing flexibility, and still have the warmth, character, and beauty of a timber frame.


CraftsmanshipOld world technique & modern equipment

Timber pre-fitting at shop

All the frames are pre-fit in our shop to assure accuracy on site. This helps to reduce on site adjustments which decreases risk with every phase. A risk free project saves everyone time, money, and emotions. The pre-fitting step can save countless hours on site in the raising process... which, once again, saves you money.

Old WorldCraftsmanship...

The timber frames are cut in our shop, by either one of our master craftsmen, or on the CNC timber cutting machine. CNC stands for Computer Numerical Control. The more complicated compound joinery is cut by hand and the more repetitive pieces are machine cut. The joinery is predetermined during design.


Our timber framing products are produced with the most advanced CNC timber cutting machines that provide the ultimate joinery fabrication.

State of the art equipmentModern day manufacturing technology

In addition to hand crafting detailed work, Computerized Numerical Control timber cutting machines (CNC) may be used for repet i t ive product ion and complex design. Modern CNC production offers technical precision as well as time and cost savings.

Accuracy and precision with computer controlled equipment

Riverbend plant with state-of-the-art equipment

Old world craftsmanship and modern manufacturing - With Greenwood Timber Framing you get the best of both worlds!


Timber & SIP’s (Structural Insulating Panels)

SIPS may be used in some areas of the home that might not be as practical for timbers, thereby reducing the number of timbers. Greenwood Timber Framing, Riverbend, and Insulspan - together create a unique, single source supplier.

To produce the panels, the EPS foam is cut to exact thickness, ready for lamination to the OSB skins. Insulspan has an in-line lamination system that creates a high quality, consistent and predictable panel every two minutes. The CNC equipment cuts the 8’ x 24’ panels to shape, fashioning openings for the doors and windows as well as the building shape. We also supply the lumber for the corners, rakes, door and window openings, skylight openings, and eaves. Lumber is pre-installed where possible and practical, again saving time and money on site.

Insulspan manufactures the Structural Insulating Panels (SIPs) that form the enclosure system

Unique equipment cuts 8' x 24' panels to shape, cuts openings for doors a n d w i n d o w s w i t h precision accuracy


The Greenwood TF and Riverbend difference


Timber frame Natural beauty Traditional joinery Evident strength Dramatic spaces In-house design

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SIPs Energy efficiency Strength and rigidity Higher build quality Faster build time Superior performance

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Why Greenwood TF? What is the Greenwood TF and Riverbend difference? We are a single source supplier of the timber frame and the structural insulated panels (SIP). The timber frame provides the natural beauty of the wood frame, traditional joinery, unrivaled strength, dramatic open spaces and with our design capability we can work with you starting at the beginning. Insulspan SIPs offers the energy efficiency, strength, quality, speed and performance that Greenwood and Riverbend has come to be so well known for.



What Sets Greenwood TF and Riverbend Apart?

So what sets Greenwood and Riverbend apart from the rest? It’s our product and the customer service we offer. It’s our longevity, history, exper ience, cons is tency, and knowledge - We pride ourselves on that. With our wealth of knowledge and experience, we can help guide you through the process of turning your dreams into a home.

How products and servicesare offered

Production methods

Enclosure system

Wood species offered

Size and capacity

Frame styles and designs (if you are not building a custom design)

A Greenwood TF Riverbend Hybrid

This is an example of a Riverbend hybrid timber frame just following completion of the frame raising.

This is the finished house. It’s the “Pleasant Meadow” from the Riverbend Plan Book. It has been one of our more popular plans since it fits the needs and desires that many people want to have in their home.

Greenwood TFinstalling the timber frame

How we help achieveyour dream


Greenwood TF will assist you with planning, budgeting and design - we start from one of the following: • Existing design from the outstanding selection in our Plan Book • Modified existing design • Custom design

Greenwood can assist you with all the phases of planning, budgeting, and designing your home. Architecture, the art and profession of designing and building, employs the elements of style, form, light, scale, and pattern as well as utility. Utility means usefulness and practicality. Practicality includes budget. If a building design is not useful or affordable, it fails. Therefore, the principles of design must be applied judiciously, with room for modification and compromise.

Greenwood Timber Framing7353 148th Ave NE

Redmond, WA 98052(425) 881-3331

[email protected]

On the Web atwww.greenwoodtf.com

mailto:[email protected]

http://www.greenwoodtf.com

Documents

Greenwood Timber Framing · Teak Hemlock Hickory Wood is the prince of building materials. It’ s a readily available, renewable resource. It is easily worked, stronger than steel