Interfor offers the largest selection of thickness, widths and lengths of large dimensional timbers in Canada. While Douglas Fir is the species most often specified for timbers, Interfor can also provide timbers in Hemlock or Spruce on a custom basis.
Douglas Fir is one of the few species available in large sizes from sustainably managed timberlands. It is preferred for heavy timber framing and large members are available in a variety of grades manufactured for construction uses where larger material is needed to meet the engineering requirements of the design.
Douglas Fir timbers are best known for their tough fiber, dense grain structure and strength. They are additionally valuable for their rustic beauty and excellent "Heavy Timber" fire ratings in the model building codes. Timbers are generally shipped unseasoned and rough cut, however kiln drying and surfacing are available upon request.
The following table is a range of common sizes and specifications. We welcome your custom and metric sizes.
| Thickness | Width | #1 & Btr | #2 & Btr | Free Of Heart | Boxed Heart | Lengths | |
|---|---|---|---|---|---|---|---|
| 3" | x | 4 - 16" |  |
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|
8 - 40' |
| 4" | x | 4 - 16" | |
|
|
|
8 - 40' |
| 6" | x | 6 - 24" | |
|
|
|
8 - 40' |
| 8" | x | 8 - 24" | |
|
|
|
8 - 40' |
| 10" | x | 10 - 24" | |
|
 |
|
8 - 40' |
| 12" | x | 12 - 24" | |
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|
8 - 40' |