Step 13: Drill pilot holes and paint the new threshold
Drill 3/32" pilot holes into the new threshold to prevent cracking from the finishing nails. Remove the new threshold from place and paint all six sides of it with a UV-resistant exterior polyurethane. Allow the new threshold to dry. If you have purchased and cut new casings and a new riser, paint these as well.
Drill 3/32 pilot holes into the new threshold.
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