How to Install a Butcher Block Countertop

Countertops crafted from wood bring a tactile, living warmth to a kitchen that stone simply cannot match. When done well, a butcher block installation feels like a permanent piece of cabinetry, perfectly flush with your walls and ready for years of meal preparation. The secret is not in the strength of your fasteners, but in your respect for the wood's natural urge to expand and contract with the seasons. Success here depends on preparation. You need a flat, level base and a finish that seals the fibers against the inevitable moisture of a kitchen environment. If you rush the sealing process or bolt the wood down too tightly, you invite warping or splitting. Treat the wood as a breathing material, and it will serve you for decades.

  1. Get a Dead-Flat Base. Verify that your base cabinets are perfectly level across the entire run. If you find gaps or dips, use shims under the cabinets or at the top of the cabinet frames to create a flat, uniform plane for the block to sit on.
  2. Make a Clean Crosscut. Measure your required length and transfer the line to the butcher block using a square. Use a circular saw with a fresh, fine-tooth blade and a straight-edge guide to ensure a perfectly square, tear-out-free cut.
  3. Allow Room to Breathe. If you are fastening the block to the cabinets, drill holes in the cabinet corner blocks or mounting brackets that are slightly larger than the diameter of your screws. This creates 'slotted' movement that allows the wood to shift slightly as humidity changes.
  4. Coat Every Surface Evenly. Apply your chosen finish—food-grade mineral oil or a hard-wax oil—to every single surface of the slab. You must coat the underside, the ends, and the long edges just as thoroughly as the top to prevent uneven moisture absorption and warping.
  5. Secure Without Overtightening. Lower the butcher block onto the cabinets and check for fit against the walls. From inside the cabinets, drive your screws through the mounting points and into the underside of the wood, ensuring you stop short of punching through the top surface.
  6. Buff to a Satin Finish. Once installed, buff in a final coat of finish. Wipe away any excess oil after 15 minutes to ensure a smooth, non-tacky surface.