Rosboro’s preservative-treated glulam beams and columns are designed for locations where they will be in full view.
Treated X-Beams are protected by a clear wood preservative that gives the Douglas fir a honey-colored hue and protects the wood against decay, mold, bacteria, and insects, including the Formosan termite, according to the Springfield, Ore., company.
Columns are treated with copper naphthenate, which gives them ground-contact protection.
Beams are available in widths of 3 1/2 inches and 5 1/2 inches and in depths ranging from 9 1/2 inches to 18 inches. Columns come in widths of 3 3/8 inches, 5 1/4 inches, and 7 inches, and depths of 3 1/2 inches, 5 1/2 inches, and 7 inches.
X-Beams carry a 25-year warranty.
Rosboro, 541.746.8411, rosboro.com.