The appearance of the heavy timber surface can be specified to suit a particular style or feel. The finish you choose bears no relationship to structural performance of the wood. Structurlam offers six finishes.
If you are looking for a traditional smooth or planed look we offer three finishes: quality, commercial and industrial. In all three finishes, the beam is planed. For commercial finish voids larger than .75" are patched and the beam is sanded smooth. For a quality finish, the larger voids are patched, smaller voids are filled and the beam is sanded. A quality finish is intended for high-gloss transparent or polished surfaces, and best displays the natural beauty of wood.
If you want a more rustic look, we offer re-sawn, wire-brushed and comb-faced. The re-sawn finish contains a varying degree of character marks created by removing the original face of the timber with a bandsaw. Typically the re-sawn finish is used in conjunction with clear glue which helps to create a look more characteristic of natural timber. The wire brush finish is also considered an architectural finish with characteristics similar to natural timber. The wire-brush effect emphasizes the grain, or acoustical grooves. The comb-faced finish offers a consistent grain or groove that is more regular and less random than the re-sawn or wire-brushed.
Coatings & Sealers
If you are looking for wood without a preservative, Structurlam recommends the use of yellow cedar. As one of the world's most durable timbers, it has a natural preservative built into it. Yellow cedar has natural oily extractives, making the wood highly resistant to weather, decay, and insect attack. A semi-transparent stain enhances the wood’s natural beauty by allowing the colour, grain, and texture of the wood to show through.
For exposed applications, Structurlam offers two preservatives: Permapost HI-Clear II, which is designed to pressure treat high value architectural and engineered wood products, and Pentachlorophenol, which is used mainly for industrial applications and exterior wood products.