So this basically sums up the basic code requirements for residential stairs and their dimensions.
Exterior door steps code.
Building code for steps.
Code requirements for exterior doors are covered in chapter 10 of the ibc.
Therefore let us recap on the residential stair code requirements.
This chapter provides guidelines on door height and width based on the function of the structure.
Summary of code requirements for residential stairs.
Building code enforcement personnel take stairway.
Exterior or outdoor stair railing guardrail landing tread and step specifications codes construction requirements for safe outdoor steps stairs railings newel posts outdoor stair railing safety hazards photos of defects.
Wider porch steps allow two or more people to comfortably navigate the staircase.
Any of you that have tried to open your door with a bag of groceries and have had to back down a step or two to get the door open can appreciate the wisdom in that one.
For example by allowing two steps up to a total of 15 1 2 in.
The height of your front entry step called risers according to code can be no higher than 7 3 4 inches.
Minimum 36 inch clear width for stairway.
This allowance provides some design flexibility.
The part of the front.
The maximum transmitted temperature end point shall not exceed 450 degrees f above ambient at the end of 30 minutes of the fire exposure specified in u b c.
Porch steps 48 inches wide accommodate one person easily and safely.
Building codes keep stairways safe with rules that apply to the height and depth of each step support and handrails.
For all non egress exterior doors the 2003 code update allows a 7 3 4 in.
Doors shall be maintained self closing or shall be automatic closing by actuation of a smoke detector as provided for in section 4306 b.
Entry step risers treads.
Step down on the interior and up to two steps down to the landing on the exterior regardless of which way the door swings it can only swing over one step.
Defects in masonry steps and landings outdoors sketches of exterior stair design requirements questions answers about exterior stair code specifications.