Click here to shop online from our warehouse Welcome to Knudson Lumber.  Knudson Lumber sells quality building materials and lumber at competitive prices.  We are a full service lumberyard with delivery to Kittitas County and beyond.  Knudson Lumber has one of the largest selections of timbers in Central Washington, along with quality doug-fir lumber and pressure treated lumber.  If you need doors, windows, metal roofing, siding, decking, paint, pavers or more, Knudson Lumber is the place you need to contact.   Knudson Lumber has been a part of the Kittitas Valley since 1937.  The dedication this business has shown it's customers is the main reason Knudson Lumber has been around for so long.  The staff at Knudson Lumber works hard to create a friendly environment that welcomes each and every person.  Whether you are a part of the contractor trade or a home owner, the friendly, fun staff at Knudson Lumber can help you. Please contact us today for more information on how we can help you with your building project.  Thank you! We offer douglas fir, pressure treated lumber, redwood, cedar, railroad ties, MDF, oak, clear hemlock, and clear fir.  We offer a variety of doors and windows, along with Glu Lam Beams, BCIs, OSB, plywood, siding, roofing, decking, and insulation.  We offer a complete paint and stain department, along with garden supplies, electrical supplies, plumbing supplies, metal roofing, and concrete products & tools.  We also offer pavers & landscape blocks, sheetrock & accessories, and lattice.  We stock Hilti, Porter Cable, and Skil power tools with other brands available by special order.  Please contact us today with your questions or special orders. Knudson Lumber © 2008