The best idea is to replace existing deck stair treads using a combination of glue and fasteners.
Deck Step Treads. Stair treads are the horizontal boards that you step on. Loose deck stair treads are often a result of the deck stair tread overhanging the riser at the front.
Stair Stringer Attachment | Decks.com from decks.blob.core.windows.net
Deck lighting, railing, balusters, and framing; Keep outdoor stairs safe and beautiful withkeep outdoor stairs safe and beautiful with this durable stair tread. Minimum tread depth is usually 9 inches.)
Set the stringers in place by resting the bottom ends on the diy:
Steps in the construction of deck & porch steps or stairs. Stair treads are the horizontal boards that you step on. Attach deck stair treads with the cup facing down to prevent the steps from holding water or acting as a tripping hazard. Watch this video to find out more.
