Roof Deck Design Height Limit Railing

The minimum height of the railing varies based on the height of the deck.

Roof deck design height limit railing.

The height of the rail post h as defined by ibc table 1604 3 is two times the height or 72 inches l. The ibc requires 42 high guardrails. Deck guardrails guards should rise to at least 36 inches above the residential deck level. 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.

Respect minimum height requirements safety is important and something that should always supersede style. Deck guardrail height. The irc requires guardrails to be at least 36 in height measured from the deck surface to the top of the rail. 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.

Decks 24 to 5 10 180 cm need 36 guards and anything above 5 10 requires a 42 high railing. The following table indicates the design deflection to be used to size the rail for minimizing the deflection. Consider a typical cantilevered deck railing that extends 36 inches above the deck surface. This is a minimum required height for residential structure higher guards are acceptable.

For a deck that meets all these requirements. Commercial decks attached to multi family buildings such as apartment buildings or businesses are regulated under the international building code ibc.