Step 9: Fasten the new piece

man fastening replacement clapboard to house exterior
Photo: Webb Chappell
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Push the thin edge of the new clapboard up at least an inch underneath the boards above, then line up its butt edge flush with its neighbors'. Start nailing at the ends; each nail should be about ¾ inch up from the butt edge and line up vertically with those in other clapboards (to prevent splits, keep nails at least 1½ inches from the end joint). Drive each nail in at a slight angle so it doesn't land in an old nail hole in the sheathing. Pound nailheads flush with the face of the clapboard; ease up on the last couple of hits so you don't dent the wood. Do the same to the old boards above the replacement (left). Finish by dabbing caulk into the nail holes and wiping away any caulk that oozes from the joint. The new piece is now ready for paint.
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    Tools List

    • utility knife
      Utility knife
    • flat prybar
      Pry bar
    • hammer
      Hammer
    • hacksaw blade
      Hacksaw blade
    • hand saw
      Handsaw
    • caulk gun
      Caulk gun

    Shopping List

    1. Replacement Clapboard (see Overview)

    2. Acrylic Latex Caulk

    3. 7d Stainless Steel Ring-Shank Siding Nails