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Bosch Header Logo 76Hills Flat Lumber Company has two expansive showroom locations to serve you: the newer location at 380 Railroad Avenue in Grass Valley and 1000 South Canyon Way in Colfax.

Hills Flat Lumber Co. offers a full line of hardware supplies, building materials, Trex, Evergrain TimberTech, and other composite decking, Redwood & Ironwoods decking, full service custom door shop, windows, millwork, siding, plumbing, electrical, paint, rentals, nursery, cabinets and hard surface flooring.

In addition to a huge inventory of home improvement and building materials, we offer a generous selection for the outdoor enthusiast, including kayaks, stand up paddleboards, camping gear, and outdoor clothing and gear for men and women.