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Stair Building Codes
Stair building codes apply to any stairway that has more
than two risers. However, like most building codes, this one can be
confusing. Even if you're building one step, it wouldn't be a bad idea
to make sure that it meets your local building codes.
What Are Building
Codes?
Attention: Don't forget to check with your local
building department to verify any building codes on this website. This
information could be incorrect or outdated. Building codes are updated
regularly and to some building departments have different
interpretations for certain building codes.
When dealing with your local building department a wise step, would be
to get all your products and installation methods pre approved, before
you build. It costs less if you only have to do it once! The building
inspector will make you tare your work apart and redo it to meet the
building codes in the area, if it's not done properly. I cannot stress this enough check with the local
building authorities in your city or county before building any stairs. If you're not going to
contact the building permit, then for your safety try to follow the
building codes on this page to maximize safety.
Maximum Rise
Maximum Total Stairway Rise
Maximum Angle of the Stair Risers
Closed Stairway Riser Options
Maximum Variation in Stair Risers
Stair Tread Minimum
Stair
Tread Nosing Requirements
Floor and
Landing Overhang
Closed Treads and Open Risers
What's an Open Riser
Staircase?
Problems with Open Risers Stairways
Minimum Stair Clearance
Painted Riser For
Safety
Stair Guard Railing
Upper Guard Rail with 8 Inch Maximum Spacing
Baluster Spacing
Lower
Guardrail Problem
Baluster Spacing Building Code Gray Area
One Handrail
Entry Stairs
Gripable Handrail
Continuous
Stairway Handrailing
Lower Handrail
Extension
Upper Handrail
Extension
Gripable
Handrail Size
Gripable Handrail
Height
Testing
Stairway Handrails - Concentrated Load of 200 P.S.I.
Gripable Stair
Banisters
Stairways Requiring Only One
Hand Rail
Stairways Requiring
Hand Rail on Each Side
Three or More
Handrails for Wide Stairways
Bottom Stairway
Problem
Do I Need a Guard
Rail?
Guardrail
Problems with Sloping Yard
House
Entrance with Hand Railing
Business
Stairs without Guard Rail
Stairway
with out Guard Railing
Exterior Stairways - 2
Stories or Less
Exterior Stairways - 3
Stories or More
Equipment Access
Stairs
Minimum Stairway
Width
Maximum
Handrail Projection
Skirt
Boards and Decorative Trim
Sloping Public
Walkways
One Inch per Foot
Slope
Painted
Stairway Warning Stripe
Private
Walkway Riser Problem
Concrete
Stair Step Warning Lines
Stair Landing
Minimum Widths
Stair
Landing Width and Doors
Maximum
Rise - House Door Swings In
Doors in Stair
Landings
Door Swing
Clearance In Landing
Circular Stairways
Minimum inside
Radius for Circular Stairs
Minimum Stair Tread
Measurements for Circular Stairs
Spiral Stairway
Spiral Stairway Tread Minimum
Spiral Stairway Access Areas
Spiral Stairway Minimum Headroom Clearance
Fire
Blocking for Stairways
Fire
Department Access - Four-Story Buildings
Windows
Around Stairways
Windows at the Top of Stairway
Windows at the Bottom of Stairway
Windows in Stairway Landing
Minimum
Stair Lift Passage for Stairway
Replacing Existing Stairways
Maximum
Landing Length -Straight Run Stairs
Outdoor
Stairways
Stairway Walks
Line
Exit Stairways
Ship Ladders
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