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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! 

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
Milwaukee 15-Piece Combination Wrench Set
Milwaukee 15-Piece Combination Wrench Set
Get a head start on your garden. Shop seed starters
Get a head start on your garden. Shop seed starters

Featured articles

How to Winterize Your Home

A checklist to keep your house cozy and protected as temperatures start to drop

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The best ways to keep your home warm and comfortable all winter long

How to Grill in the Winter

Tips and tricks for enjoying deliciously grilled food all year long