Deck Stair Railing Code Requirements

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Deck stair guardrails must be between 35 and 38 giving you slightly less wiggle room than most American building codes offer. On monumental stairs handrails shall be located along the most direct.


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Building code requires support posts for the rail structure to be no further apart than 6 feet on a deck with 44 deck rail posts and no more than 8 feet apart for decks with 66 deck rail posts.

Deck stair railing code requirements. 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. Ad Improve Your Business ROI – Get A Better Deal On Stair Tread. These illustrations show the differences between a solid or notched stringers.

Here the treads are supported on the inside of the stringer with 2×4 cleats but could also be metal brackets. Intermediate handrails are required so that all portions of the width of stairs are within 30 inches 762 mm of a handrail. There are specific requirements for each aspect of the railing system such as handrail height the amount of pressure that the system must be able to withstand and how far apart the posts must be spaced.

The minimum height of the railing varies based on the height of the deck. The International Residential Code IRC adopted by most US cities and towns requires 36-in-high deck railings for decks more than 30 in. Building codes require any flight of stairs with four or more rises to be built with a handrail on at least one side.

The final authority on when and where railings stair rails or guards and handrailings are required on steps stairs landings balconies and decks rests with your local building code official. Interestingly deck railing posts are not allowed to be more than 4 apart if they stick up above the post. Commercial decks regulated by the IBC require that guardrails be 42 inches in height.

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As long as the materials and spans meet the code minimum requirements you can build your stairs with some creativity. Handrails are required on. Decks higher than 30 inches above grade must have a guardrail.

Ad Improve Your Business ROI – Get A Better Deal On Stair Tread. Decks attached to single family detached homes are generally regulated under. Deck Stair Handrails Handrails are installed on stairs to assist in ascending and descending by providing something to grasp for balance.

For straight railing the IRC requires guardrails to be at least a 36 railing height. The railing must be strong enough to resist the following loads. Posts should be no further apart than 55 feet on stairs.

If you choose to install a guardrail on a deck lower than 30 the railing must still meet code requirements. If they are part of a continuous top railing then they can be 6 or less apart. All decks higher than 30 above grade must have a guardrail.

Stair GuardHandrails shall be constructed to withstand a concentrated load of 200 pounds 91 kg applied at any point and in any direction. Decks 24 to 5-10 180 cm need 36 guards and anything above 5-10 requires a 42 high railing. The IRC requires that guardrails for single-family detached homes be at least 36 inches high measured from the top of the rail to the surface of the deck.

In the previous codes established the smallest arm area of the deck to size a footing from was 20 square feet which leaves something as small as a stair landing at a minimum 14-inch diameter for every corner post. Stair railing is a bit different and must be 34 high which is measured from the nosing of the stair tread to the top of the rail. California 2007 Building Code effective 1 January 2008 for safety guardrails on balconies decks and on the horizontal area of stairway landings for walking areas whose surface is more than 30-inches above adjacent walking surfaces or the ground for Group 2 individual residential dwellings as well as for Group-3 occupancies specifies that the guardrail must be 42-inches or higher.

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Cable Railing Code Guardrail Requirements Whether you are installing cable railing on a deck staircase or balcony its important to make sure that your railing system is up to code. Guards are required when then deck is 24 60 cm above grade. How Do I Meet Height Gapping Code Requirements On Stairs.

Treads must be at least 10 inches deep measuring from front to. Requirements for Deck Stairs The code has some very specific requirements for deck stairs. The building code requirement for stair railings typically requires handrailings on stairs that have a total rise of three feet or more.


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