Roof Deck Design Height Limit Railing

Consider a typical cantilevered deck railing that extends 36 inches above the deck surface.

Roof deck design height limit railing.

Deck guardrails guards should rise to at least 36 inches above the residential deck level. The minimum height of the railing varies based on the height of the deck. Commercial decks attached to multi family buildings such as apartment buildings or businesses are regulated under the international building code ibc. Decks 24 to 5 10 180 cm need 36 guards and anything above 5 10 requires a 42 high railing.

Commercial deck guardrails such as those found at restaurants bars and at multifamily homes such as apartments or condos are required to be 42 inches high minimum. The height of the rail post h as defined by ibc table 1604 3 is two times the height or 72 inches l. Not exceeding 200 ft2in area not more than 30 inches above grade at any point not attached to a dwelling not serving the egress door 2018 irc significant changes to deck provisions 10 general requirements used materials r104 9 1 used materials equipment and. The irc requires guardrails to be at least 36 in height measured from the deck surface to the top of the rail.

This is a minimum required height for residential structure higher guards are acceptable. For a deck that meets all these requirements. Deck guardrail height. Respect minimum height requirements safety is important and something that should always supersede style.

Guards are required when then deck is 24 60 cm above grade. Decks 24 to 5 10 180 cm need 36 guards and anything above 5 10 requires a 42 high railing.