The post will be the desired height of the railing, and the width of the framing it is attached to, minus the thickness of the cap that rests on top of the posts (if any). Most local codes call for a railing that is either 36 or 42 inches tall, but check with your building department. Wood railing posts are usually 4x4s, which can be left bare or covered with PVC or composite sleeves. That means they need to be installed prior to adding the decking. Current codes demand stronger posts, so they are generally not notched and are installed on the inside of the framing. When building a deck, you may be wondering “what is code for deck railing posts?” Many older decks have railing posts installed on the outside of the deck framing, and sometimes those posts were notch-cut at the bottom where they fit against the outside joists. Also, if you are attaching a railing post to an outside joist that is not doubled, install blocking nearby or to the side of the post. However, your building department may require additional hardware for extra strength.
TREX DECK RAILING HOW TO
This article teaches how to install posts with two bolts in order to create a very strong attachment. Proper installation is absolutely necessary to ensure that posts are spaced close enough to keep children and pets from slipping through and secured tightly enough to prevent wobbling that can lead to railing failure and falls. Sturdy deck railings are critical for safety and also required by code for any deck 30 inches or more above grade. Deck railing post attachment is one of the most important things you need to do correctly when building a deck.
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