RBM Lumber

Beams Info

Beams and timbers can add an impressive accent to almost any project and are frequently an integral component of the structure itself. So when possible why not add the natural beauty and character of a real solid wood beam? At RBM we have been supplying posts and beams to local contractors for over 30 years.

  • Beams
  • Beams
  • RBM Pine Counter Top
  • We Deliver To Southern Alberta
  • Wood Beams

Wood Beams and Timbers: Sizes

  • Up to 20” x 30” and lengths up to 32 feet long*
  • IMPORTANT NOTE: Sizes and lengths of various grades are always dependant on log availability.


Wood Beams and Timbers: Grades

  • #2 structural is the base of our grading system. It is primarily concerned with structural quality and may have some wane, checking and other defects ..

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Wood Beams Stability

When we talk about stability we are referring to how much a beam will shrink, twist, check and move as it acclimates to the environment it is in. Click for more info...

Rough Lumber Specs

There are many uses for rough cut lumber … from barns and fences on the farm, to exterior trim on a custom home. Each application has its own set of issues to be considered when selecting the best product to use. At RBM Lumber we’ve been supplying rough lumber for myriads of applications for over 30 years. The following are some basics to keep in mind. Click for more info...

Beams Info

Beams and timbers can add an impressive accent to almost any project and are frequently an integral component of the structure itself. So when possible why not add the natural beauty and character of a real solid wood beam? At RBM we have been supplying posts and beams to local contractors for over 30 years.

The balance between visual appearance, structural quality and price can make obtaining beams for a project a real challenge. We help our customers get past this hurdle by being as flexible and versatile as possible. We understand these concerns and have developed our product line with them in mind. When we don’t think we have the right product for you we will try to steer you in the right direction.

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Wood Beams and Timbers: Grades

*Because we hand cut our logs, and don’t use the conventional high-volume logging machinery, we are able to deliver these longer logs. × Close

Wood Beams Stability

When we talk about stability we are referring to how much a beam will shrink, twist, check and move as it acclimates to the environment it is in. All movement in wood takes place while the wood is drying out or picking up moisture. There are only two sources of beams that can be guaranteed not to move and that is glue lams and recycled — both of which may force you to sacrifice the price advantage and/or the appearance you are looking for. For this reason we make as many beams as possible, where stability is of concern, from dead standing Fir & Larch which is already partially dry and therefore more stable than green cut beams.

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Rough Lumber Specs

Movement in Wood
When wood dries out it shrinks. When it picks up moisture it expands. Consequently, in an exterior application in most climates wood will shrink and expand with the season changes.
In an interior application, once it acclimates, wood moves very little due to a more constant humidity. Where the product is being used in your project and your own personal taste is what determines how critical it is to try to control that movement. In many instances the natural movement in wood is irrelevant.
Rough Lumber Moisture Content
In applications where stability is crucial moisture content is very important. For interior applications 6% MC is ideal. In semi-dry climates 12% MC is ideal for exterior. In certain applications such as siding, proper installation is very important because of the continual movement of the wood. At RBM we can help you know what moisture content is ideal for your application and give you installation tips. In some cases we will either air dry or kiln dry products where lower moisture is necessary. Other times, when available, we will try to cut from dead standing timber because of certain advantages.
RBM Rough Lumber Grades

Rough Lumber Dimensions
At RBM we cut all our rough full dimension which means a 2×4 is a full 2″ by a full 4″ not 1 1/2″x 3 1/2″. This means our 2×6 has more wood in it than a surfaced 2×8. But you can special-order pretty much any dimension you want from ¼ inch thick up to 30 inches or wider depending on grade and species.
We try to inventory as much of the more commonly requested products as possible such as 2×4 through 2×12 in rough green and in dry exterior trim stock, as well as various specialty products like 5/4 trim for different siding products and commonly used 1” boards. 5/4 is a dimensional term… that is, it’s really a full inch and a quater thick. The width is dimensional… Our 5/4×4-inch is cut at a full 4-inches wide and then shrinks slightly as it dries.
Depending on the product we can cut up to 32 feet long. We literally have thousands of different products in stock and can cut almost anything.
Because there are so many uses for rough lumber with such a varied desire for appearance we at RBM don’t assume anything. We will ask as many questions as necessary to be sure your product both works and satisfies your taste for appearance.
Not all products come in all grades and all species
but we can usually find a product that will fit your needs.
 If not we may know where you can find it.

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