Repairing Decking or Joists
Time Required: 2-4 hours
Repairing a small area of your deck can save you time & money. If a cosmetic issue, remove the plank, flip and refasten. If repairing a damaged joist, support the deck on one side of the deck or it could crash, and match the wood replacement with similar type pressure-treated lumber. This guide will teach you to safely repair any deck or joist.
Tools & Materials
Remove nails or screws from the damaged decking board using a pry bar, screwdriver or drill. If the fasteners won't come out, chop the board into pieces with a chisel or saw, pry up the slivers, and replace.
Treat all sides of the reinforcing joist with a clear sealer and let it dry. Position the reinforcing joist tightly against the damaged joist, and attach it with 16d (3.5") galvanized nails driven every two feet or fasten it with 3 1/2-inch galvanized deck screws.
If the existing decking is gray, "weather" the new decking with a solution made from 1 cup of baking soda and 1 gallon of warm water. Apply in the solution with a scrub brush. Rinse and let dry.