How To Attach 4x4 To Deck For Railing
Deck railing posts are the foundation of a deck railing system.
How to attach 4x4 to deck for railing. However this creates a place for moisture to collect so most builders install a 4x4 post a few inches away from the house as shown here. They draw the baluster up closer to the deck edge and make a slightly firmer joint than surface mounted posts. Deck anchors attached to the inside of the joists make stronger railings. Determine the post spacing.
A secure method of attaching railing posts to a deck is to notch the post at the bottom so it fit snugly in the space between the two outer floor joists. The problem is that the railing post acts like a lever exerting a very large force on the connection at the bottom. It s easy to connect deck railing posts to the floor joists of the deck. Attaching deck railing posts.
How to make notched posts notched posts take time and experience to cut but make a pleasing finishing touch for a deck railing. Along the end joists use deck screws to attach extra bracing between the end joists and floor joists to mount the anchors. No posts were needed against the siding of the house because we planned to attach the railing section using a decorative 2x4 that capped the end of the railing section. The only practical way to resist this force with 4 4 wood posts is to with specialized steel framing.
Don t lag bolt a deck railing post to the outer band board that s nailed to the ends of the floor joists. Where the railing runs into the house some decks use a 2x4 attached to the house s siding rather than a 4x4 post. How the posts attach to the framing. Cut the bracing from the same 2 x lumber you used for the joists 2 x 8 lumber for this deck.
With the right post anchors or hardware you can get some impressive aesthetic results and greatly reduce the potential for rot. Six railing posts were required on the deck surface. When homeowners and diyers build a deck they often fail to attach the railing posts to the deck framing securely. This is stronger than a 4x4 post attached to the deck.
In our small deck we only needed posts at the outer corners. The weakest link is not the post to rim joist connection but the rim joist to the floor framing.