Thornton sits at an elevation where the sun hits harder than most people account for when they're planning an outdoor structure, and the climate adds freeze-thaw cycling and significant temperature variation on top of that UV load. Those conditions work their way into every joint, connection point, and surface over time, and the material you choose at the outset is what determines whether your pergola looks and performs well a decade from now or starts showing its age much sooner. Choosing the right material from the start is what determines how your pergola holds up over the long run, and we walk every homeowner through the tradeoffs honestly before anything gets decided.
1. Cedar is our most requested option because it resists moisture and decay naturally, handles Colorado's conditions without demanding much in return, and comes in rough-sawn and smooth finishes that suit a wide range of home styles and design preferences.
2. Douglas fir is worth considering for homeowners who want a bolder, more pronounced grain pattern at a lower starting cost, though it does require consistent maintenance to stay in good shape as the years go on.
3. Vinyl is the practical choice for anyone who wants a structure that looks great indefinitely without refinishing, staining, or any seasonal upkeep whatsoever.