In terms of stair railing code requirements, code is nearly uniform across North America. Deck Railing Height Code Requirementsĭeck railing height code requirements are straightforward, although there is some deviation between states and provinces regarding a standard railing height for decks.

There are more code requirements for the handrail itself, in terms of making it graspable for all types of hands, but we’ll go over those in-depth, below. If you have a long, unbroken set of deck stairs – over 60” – then you’ll need a handrail in the center of your steps to adhere to deck stair building code. This usually isn’t an issue for most deck stairs, as handrails are on both sides. If you’ve determined your deck stairs do need a railing, then you must ensure it is at least 34” vertically from the nosing (the front edge of the tread) to the handrail.Īlso, many jurisdictions mandate that you cannot be any further than 30” from a handrail while on a flight of deck stairs. So, if your deck stairs only have two treads or three risers, you do not need a handrail for your steps unless you live in the state of New York – more on that, below. There is always one more riser than stair tread, so you could say that any set of deck stairs with three or more stair treads needs a handrail. The code states that deck stairs that have four or more risers need a handrail.

The definition of “step” often confuses people building deck stairs, so let’s clear that up. If you do opt to install a railing system on a deck that is below a 30” grade, it is not required to meet deck railing requirements as it becomes an accessory, not an essential safety feature of the deck as long as your local code dictates a 30” minimum. And if you aren’t sure what your local code states, it’s best to stay on the safe side and install a railing if your deck is more than 2’ off the ground. Fluctuations in grade level, shifting earth due to freeze/thaw, aesthetics, or safety might compel you to install a railing anyway. Remember that if your deck is 20” or 25” above grade, you still might want to have a railing. A handful of states and some provinces, mandate railings begin at 24” above grade – not 30”.

If your deck is below 30”, then you do not need a railing for most North American jurisdictions. Deck Guardrail Height Requirements for Canadaīuilding code for deck railing indicates that you need a deck railing for any deck that is 30” or more above grade.Deck Railing Height Code Examples for Different States.What Is the Difference Between a Stair Rail and a Handrail?.

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