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|Douglas Fir S4S Timbers|
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Douglas Fir S4S - Product Info
Factories, warehouse, mills, army depots, storage buildings, schools, mines, trestles, drydocks and all manner of other structures were built across the Western United States and Canada using strong, straight and beautiful Douglas Fir timbers. Trestlewood reclaims these beautiful, historic timbers and offers them to its customers for use as weathered timbers, resawn timbers, trusses and frames. You simply can't beat the beauty, stability and history of a frame or trusses built with timbers cut from reclaimed Douglas Fir.
|Species||Primarily Douglas Fir|
|Source||Buildings and industrial structures from different locations in North America|
|HC/FOHC||Generally HC; usually moderate to very tight growth rings.|
|Metal||Nails, bolts and other fasteners are removed or occasionally cut flush or broken off inside the material.|
|Holes||Nail, bolt and other fastener holes are allowed; the quantity and size of the holes can vary widely from timber to timber, with some timbers containing no holes or only limited small nail holes and others containing frequent nail and bolt holes. Staining around nail and bolt holes is common.|
|Checking/Cracks||Timbers generally have a check from the heart center to one of the faces of the timber. In addition, timbers can |
have surface checking and cracks, moderate butt checking and minor end splitting.
|Surfacing||Band-Sawn or Planed (S4S)|
|Standard Dimensions||a) Cross-sections: 4x6 to 10x10; b) Lengths: to 16';|
c) Target Dimensions: timbers are targeted at 1/2" under full-sawn for dimensions up to 5" and 3/4" under full-sawn for dimensions over 5"; d) Tolerances: band-sawn +/- 1/8"; planed timbers +/- 1/16".
|Available Dimensions||a) Cross-sections: depending on inventory in stock (sizes offered in the past include 20x20, 12x20, 11x23, 10x24, 15x17, others); b) Lengths: depending on inventory in stock; c) Target Dimensions: timbers are targeted at 3/4" under full-sawn; d) Tolerances: all larger timbers are cut to the stated dimensions +/- 1/8".|
|Weight||Typically, approximately 3 pounds per board foot|
|Grading||Douglas Fir resawn timbers can be graded (WLCB) upon request. Timbers are graded with exception taken for any holes. It is highly recommended that any timbers that are to be used in a structural application be graded. It is also recommended that standard size timbers be used whenever possible. Checking and holes (where metal has been removed) tend to be more pronounced in timbers wider and/or thicker than 12" than in standard size timbers.|
|Appearance Variation||Douglas Fir Resawn Timbers are often cut from stock coming from a variety of sources. As a result, timber characteristics can be expected to vary from piece to piece. Trestlewood believes that appearance variations (no two timbers exactly alike) are one of the selling points of this product line.|
Note: Please study specification sheets to familiarize yourself with product characteristics and their possible implications for your application.