The rise, or the vertical distance from one tread to the next, can be no more than 7 1/4 inches high. Stair rails on decks should be between 34 inches and 38 inches high, measured vertically from the nose of the tread to the top of the rail. Treads must be at least 10 inches deep, measuring from front to back. Stair treads must sustain a weight of at least 300 pounds in an area no more than four inches square. More items...What is the minimum height for deck railing?
The minimum height of the railing varies based on the height of the deck. Decks 24" to 5-10" (180 cm) need 36" guards and anything above 5-10" requires a 42" high railing.What are the parts of a deck rail?
Railing parts include balusters and posts, a horizontal rail, and a cap. Balusters and posts are attached to the header and outside joists of the deck. Deck railings are often required by building code, depending upon the height of the deck.