Step 10: Cut and Glue Down the PVC Cap

hands checking the overhang on the cap board of this all weather planter
Photo: Matthew Benson
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To make a cap with a 1-inch overhang all around, add 2 inches to the length of the long sides and cut two 1x3s to this length. Apply glue to the face of a 1x3 and the top edge of a long side. Set the 1x3 in place, checking the overhang's spacing by holding a 1-inch block against the sides of the planter. Repeat with the second 1x3. Measure the distance between the long cap pieces and cut two short cap pieces to size. Glue them down in the same manner as the long pieces.
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    Tools List

    • miter saw
      Miter saw
    • drill
      Drill/driver
    • adjustable clamp
      Clamps
    • tack cloth
      Tack cloth
    • 3-inch wide paint brush
      Paint brush

    Shopping List

    1. Cellular PVC trim boards We used AZEK trim. Get two 12-foot 1x4s and four 12-foot 1x3s. If 1x3s aren't stocked, rip them from 1x4s and use the scrap for the ledges.

    2. Cellular PVC beadboard Choose 5½-inch tongue-and-groove boards or similar.

    3. Plywood and scrap 1x material

    4. PVC adhesive Choose a clear glue with a slow setting time, such as AZEK adhesive.

    5. 1-inch pan-head stainless-steel screws6. 1 5⁄8-inch trim-head stainless-steel screws

    7. Spackling paste rated for outdoor use, such as CrackSHOT, to fill fastener holes.

    8. Fine-grit sandpaper

    9. Latex exterior paint For dark colors use a reflective paint, such as VinylSafe by Sherwin-Williams, so that the PVC won't warp in the heat.