A railing must be continuous from the bottom of the steps to the top and begin. Stair railing height must fall within the range of 34 to 38 is used as a handrail.
This Old House general contractor Tom Silva installs a wall-mounted staircase banister.
Steps railing height. This means that a handrails height is measured from the top of the stair treads or horizontal stepping members. Handrail height must be between 34 and 38 inches. The railing height code distance or the height from the top of the bottom stair to the rail is 34 to 38 inches.
Handrail ends must be returned and terminated at rail posts. 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.
Building codes generally suggest that the maximum height of a riser be 775 inches 197 cm Nosing. 6 rows Stair Railing Building Code. 34 to 38.
If a staircase has risers equal to or more than 30 inches in height a hand railing needs to be installed at 36 to 37 inches from the top of the tread. A hand railing must be installed of there are a series of steps rising more than 30 inches from ground point. Once this balustrade is completed additions can be made for Building Code.
And 191029 f 1 iii B. Handrails are required for stairs in many applications and must meet standards as specified by R311563 in the IRC code. Decks 24 to 5-10 180 cm need 36 guards and anything above 5-10 requires a 42 high railing.
Optimal Handrail Height Most building codes require handrails for exterior stairs to be between 34 inches and 38 inches above the stair nosings. Step 1 Construct an architecturally correct balustrade with a railing height of 2725 inches your window height or default to 24 to match the architecture of the house. The number of risers not the number of treads is used to determine the number of steps that comprise a staircase.
You can learn more about building code definitions for handrail here. The height of the stair rail system is not less than 36 inches 91 cm and not more than 38 inches 97 cm as measured at the leading edge of the stair tread to the top surface of the top rail see Figure D-13 of this section. Structurally it must be able to withstand a concentrated load of 200 lbs.
The top edge of the handrail must be placed between 34 and 38 above the nosing of the stair treads. The minimum height of the railing varies based on the height of the deck. Or a uniform load of 50 lbsft.
See below for a shopping list and toolsSUBSCRIBE to This Old House. Graspability requirements will limit handrail dimensions. Otherwise a minimum of 34 is the only requirement for a deck stair guardrail.
Respect Minimum Height Requirements Safety is important and something that should always supersede style. 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. The nosing is the protrusion at the edge of a tread that hangs over the riser below.