Brothers 440Welcome To Hills Flat Lumber

Hills 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.


Popular Departments


Price Match Guarantee

If you find a lower price from a store front retailer within a 50 mile radius on a new identical branded item, just show us the lower price when you buy the item at Hills Flat Lumber and we will match the price. Or, if you find a lower price within 10 days of your Hills Flat Lumber purchase, we will give you the difference. See our full Price Match Guarantee for exceptions.

BRcard 158Join. Earn. Save!

Ask about our Hills Flat Lumber Best Rewards program to receive rebates, money-saving coupons, and access to members only promotions. The Best Rewards Program lets you earn points on eligible purchases and to redeem points for Reward Coupons.