Family Owned And Operated for Generations
Family Owned And Operated for Generations

Serving the Finger Lakes Region Since 1958

Knapp and Schlappi Lumber Co. is a family owned and operated business that has been serving our local community since 1958. We carry a large selection of building materials and hardware supplies that make us your one-stop shopping place. Please contact us for any of your residential and commercial needs. We will do our best to ensure you have a great shopping experience with us.

Our Services

From top-notch tools to expert advice, we’ve got your DIY and home improvement needs covered! Our services are tailored to meet your every need. Trust us as your local experts and one-stop-shop for convenience, quality, and unmatched expertise in all things hardware! 

Prime Guard Ultrapure 2.5 Gal. Diesel Exhaust Fluid - Save 24% - $12.99 - Shop now
Prime Guard Ultrapure 2.5 Gal. Diesel Exhaust Fluid - Save 24% - $12.99 - Shop now
Gift Cards
Andersen Windows & Doors logo with house
Andersen Windows & Doors logo with house
DuraLife composite decking with logo
MoistureShield logo with MoistureShield deck seating
Makita power saw with logo
Makita power saw with logo
Refresh your bathroom for less - Shop deals
Keep indoor spaces clean this seasonUp to 46% off work gloves
Reliable storage for your holiday decor - Sterilite - Shop Now
Reliable storage for your holiday decor - Sterilite - Shop Now
Start the new year off with a deep clean! Shop Bissell
Start the new year off with a deep clean! Shop Bissell
Made for life's toughest, greasiest, grimiest jobs - Crocodile Cloth - Shop Now
Made for life's toughest, greasiest, grimiest jobs - Crocodile Cloth - Shop Now

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