Welcome to Knudson Lumber! Knudson Lumber has been a part of the Kittitas Valley since 1940. We offer a full service lumberyard with delivery throughout Kittitas County and beyond. Knudson Lumber has one of the largest selections of timbers in Central Washington along with quality doug fir and treated lumber. We also offer windows, doors, metal roofing , siding, decking, paint. lawn and garden items, pavers, landscaping blocks, plumbing, eclectrical, tools and more. Knudson Lumber is affiliated with Do it Best Corp., an international buying group, that provides us with greater buying power so we can offer our customers competitive pricing on quality building materials. We have over 65,000 items available to us on our weekly order, so if we don't have it in stock, it will be here in a short time. If you are building your dream home or fixing a leaky faucet, we can help you with what you need. We take pride in offering our customers friendly, knowledgeable service and we look forward to working with you.