31+ Douglas Fir Pergola Pics. Discounts do not apply to specialty suites. It is dimensionally stable and universally recognized for its superior strength.
Douglas fir is ideal for outdoor or indoor applications where strength is needed for a structural purpose. Not your average pergola/patio cover! It is dimensionally stable and universally recognized for its superior strength.
The base of the posts were covered in tar for waterproofing.
Douglas fir (df) is the number one choice by architects and engineers for structural timbers. There will be 6 3x8 (actual 2 1/2 x 7 1/4 )douglas fir rafters (to be painted white) within the outer frame, attached to. See more of douglas fir on facebook. Native to the west coast of north america, it is forested extensively in timber plantations throughout europe, new zealand and south america.