Step 4: Stain and Seal the Base

Sand the 4x4 and 6x6 post caps, then use a clean rag to apply a stain that matches the baluster. Wait a moment, then wipe off any excess stain that hasn't been absorbed, rubbing the rag in the direction of the wood grain. Apply more coats as needed. When the stain dries, apply a coat of polyurethane.
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    Tools List

    • miter saw
      Miter saw
    • 16-foot tape measure
      Tape measure
    • bar clamps
      Bar clamps
    • drill
      Drill/driver fitted with -inch Forstner bit and 3/16-inch drill bit
    • tack cloth
      Tack cloth
    • paintbrush
    • cleaning rag

    Shopping List

    Three balusters

    Three 4x4 flat-topped post caps

    Three 6x6 flat-topped post caps

    150-grit sandpaper



    Three 3-inch wood screws

    Three 1-inch taper candles