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Full dimension, circle sawn timbers, made from grown-in-Montana Douglas fir are the perfect choice for both architectural and structural applications. Our timbers help make a statement throughout your home, with beautiful circular saw marks that add intrigue to the natural character of the wood. Marks Lumber is the choice supplier for timber packages for your custom home, shop, or barn. Use for timber frame buildings, post and beams, entryways, porches, and pergolas.

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Unlike other retailers, Marks Lumber’s timbers are full dimension, meaning a 6x6 measures 6” thick and 6” wide, rather than the standard 5 ½” x 5 ½”. Our timbers are hand graded to Western Wood Products Association standards, creating an extremely high-quality and durable product.


Texture: Circle Sawn; Band Sawn (Special Order)

Finish: Unfinished

Grade: Select; #2 Grade

Thickness: 3”-12” (Larger sizes are special order only)

Board Width: 4”-12” (Larger sizes are special order only)

Net Coverage: Full Dimension

Length: 8’-20’ (Larger sizes are special order only)

Moisture Content: Kiln dried to less than 19%

Timber Frame Articles

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Timber Frame Inspiration

Apr 17, 2024

There’s something about a timber frame home that just creates a sense of warmth and comfort. Intricate joinery, exposed timbers, and high lofted ceilings all work together to create a...

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What is Post and Beam Construction?

Aug 02, 2023

Post and beam structures are known for their unique look, strength, and intricate details. A traditional form of construction that has stood the test of time, post and beam construction...

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How to Turn Your Dream Timber Frame Home Into a Reality

Mar 09, 2022

Marks Lumber is your choice for sustainable forest products, including circle sawn timbers, flooring, siding, and rough sawn lumber. In addition to being a manufacturer and retailer, Marks Lumber...

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5 Reasons to Build a Custom Home

Feb 02, 2022

If you are starting to look for a new home, you may be stuck trying to decide if it's worth it to build a custom home or if you...

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Stunning Home Details For Your Custom Montana Home

Jan 05, 2022

There’s no question that Montana is a special place to live. With its natural, rugged beauty, there’s really no place else like the Big Sky state. That’s why creating a...

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Why Rocky Mountain Douglas Fir Makes Excellent Wood Products

Sep 29, 2021

At Marks Lumber, we manufacture high-quality, circle-sawn lumber, timbers, siding, and flooring – all from locally-grown Douglas fir timber. Rocky Mountain Douglas fir is a wonderful choice for many...

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Wood: The Way of the Future

Sep 15, 2021

Wood products are no longer a thing of the past. In fact, many say this renewable resource is the future of the building products industry. This is not only due...

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4 Tips for Making Your Timber Frame Home Look its Best

Sep 08, 2021

Timber frames add the ultimate level of craftsmanship to the place you call home. Timber framing has a long history, with evidence of timber frame construction from as far back...

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Common Timber Frame Joinery

Aug 04, 2021

Timber framing is a unique type of construction where the wooden frame supports the entire weight of a building. While post and beam construction is similar in that it...

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5 Reasons to Build a Timber Frame Home

Jul 14, 2021

Timber frames homes are some of the most stunning structures out there. Exposed timbers, intricate wood joinery, and stand-out trusses are all design features of timber frame homes that set...

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Why Do People Choose Rough Cut Timbers?

Apr 21, 2021

There is a common misconception about what you can and can’t do with rough-cut lumber and timbers. Many people are surprised to learn that rough cut material can be...

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Log, Timber Frame, and Post and Beam Homes

Apr 14, 2021

Log homes, timber frame homes, and post and beam homes are classic building styles that feature large logs or timbers as their main attraction. While many people tend to...

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Why Builders Trust Marks Lumber

Mar 10, 2021

Warm weather is just around the corner, which means the start of many more builds. As plans start to come together and you begin to search for material quotes, you...

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