Is it illegal not to have a handrail on stairs?
It depends on local code, but the model rule calls for a handrail once stairs have 4 or more risers. Baluster gaps, riser rules, costs, what to ask.
Updated · By 
Ben Sikes
Do you need to have a handrail on stairs?
Whether it is illegal not to have a handrail on stairs depends on where you live, and your local building department decides for your address. The model rule is simple. The International Association of Certified Home Inspectors (InterNACHI) says any stairway of 4 or more risers should have a handrail on at least one side. If your report flags a missing handrail, treat it as a repair to price. Get a carpenter's written bid and put it in your request.
Key takeaways
- Railing gaps beside the stair treads should not pass a 4 3/8-inch ball. Porch and balcony railings are tighter, at 4 inches.
- Fannie Mae calls a missing handrail minor, and Federal Housing Administration (FHA) rules call one that poses no threat to safety cosmetic. Don't count on the appraisal to force the fix.
- Ask for a scope and a price, such as a handrail on the basement stairs per the attached bid. A request to bring the stairs to code gives the seller nothing to price.
What do the rules say about handrails, balusters and risers?
InterNACHI's stairway checklist gives the figures below, based largely on U.S. building codes. The American Wood Council's deck guide ties the same handrail rule to section R311.7.8 of the International Residential Code (IRC). It also says all construction "must be approved by the authority having jurisdiction." For your house, that is the local building department.
| What the report flags | The rule it's measured against |
|---|---|
| No handrail | Required on at least one side once a stair has 4 or more risers |
| Handrail too high or too low | 34 to 38 inches, measured up from the front edge of the treads |
| Gaps at the sides of the stair treads | No opening should pass a 4 3/8-inch sphere |
| Other railing gaps, including porches and balconies | No opening should pass a 4-inch sphere |
| Open risers (no board between treads) | No opening should pass a 4-inch sphere, unless the stair rises 30 inches or less in total |
| Triangle under the rail at each step | No opening should pass a 6-inch sphere |
| Riser too tall | 7 3/4 inches at most, so an 8-inch riser is over |
| Uneven risers | The tallest riser in a flight should not exceed the shortest by more than 3/8 inch |
A stair built under an older code may have been legal when it was built, and a seller may say so. Frame your ask as a priced safety repair, not a code violation.
If your inspector follows the InterNACHI Standards of Practice, stairs, railings, guards and handrails are on the list. Those standards also require the inspector to report improper spacing between balusters as in need of correction.
Reports also flag handrails that stop short or are hard to grip. InterNACHI says a handrail should run the full length of the flight, from above the top riser to above the bottom one. A round rail should be 1 1/4 to 2 inches across. A loose rail counts too: InterNACHI says a wall rail's attachments should carry a 200-pound load into the structural wall.
InterNACHI's sample report wording pairs each of these defects with a recommendation for correction and further evaluation. On your report, that line is your cue to get a carpenter's price.
How serious is a stair or handrail finding?
Take it seriously. InterNACHI says "stairways are one of the most hazardous areas of a home and stair falls are often fatal." It also says guards should "prevent children from crawling through them," which is what the baluster rule is for.
If the report ties uneven risers or sloping stairs to settling, the question is bigger than the stairs. InterNACHI's standards list unlevel floors as a possible sign of foundation movement. Get a structural engineer to look before you price the stairs, and see foundation and structure findings on an inspection report.
What does it cost to fix?
It depends on whether the fix is a rail, the balusters, or the stair itself.
| Scope | Range | Source |
|---|---|---|
| Install a stair railing | $500 to $1,300 | HomeAdvisor |
| Install a stairway handrail | From $40.15 to $60.18 per linear foot | Homewyse |
| Replace balusters | $1,200 to $1,600 | HomeAdvisor |
| Replace finished basement stairs | $920 to $2,880 | HomeAdvisor |
HomeAdvisor says size, design, labor and finishes drive the railing price. Kept prices every line of an inspection report for $79, usually under 4 hours. For uneven risers, ask the carpenter whether one step needs fixing or the whole flight, and get that answer in the written bid.
Who can price it before your deadline?
A carpenter or general contractor. Send them the report page with the photo and the inspector's measurement. Ask for a written bid that names the scope, the material and whether the old rail comes out. If the stair has an open side, ask the bid to cover the balusters too, so the gaps meet the sphere rules above. HomeAdvisor puts most railing installs at five to 10 hours of labor, so ask for the carpenter's first open date too.
For how to get bids back inside your window, see how to get repair estimates during the inspection period.
What should you ask the seller for?
A priced fix. Say your report flags no handrail on 13-riser basement stairs, and risers that vary by more than 3/8 inch. The carpenter says the flight has to be rebuilt.
HomeAdvisor's finished-basement-stair range plus its railing range comes to $920 + $500 = $1,420 at the low end. At the high end it is $2,880 + $1,300 = $4,180.
Ask whether the rebuild bid already includes the rail, so you don't count it twice. Then ask the seller to have the work done and hand you the invoice, or for a credit at your bid's number. What to ask for after a home inspection covers where this sits in your list, and the buyer repair request letter template covers the wording.
What if the seller says no?
You can fix it yourself after closing, ask for less, or cancel if your inspection contingency allows it. If you keep the house, the carpenter's bid becomes your repair budget after move-in. When to walk away after a home inspection helps you decide. Your contract sets the exact dates and terms, so confirm them with your agent.
How many steps can you have without a handrail?
Three risers or fewer, under the model rule above. Count the risers, the vertical faces between steps, not the treads you stand on.
Will your lender make the seller add a handrail?
Don't count on it. Fannie Mae's Selling Guide lists missing handrails among minor conditions that "generally do not rise to the level of a required repair." For FHA loans, the HUD handbook calls "missing handrails that do not pose a threat to safety" cosmetic, and says cosmetic repairs are not required. Ask your loan officer how your appraiser will treat it.
How do I know what the rest of my list is worth?
If the stairs are one line in a longer report and your window is closing, upload your inspection report to Kept and send a request with a number on every line.
Sources
- InterNACHI, Advanced tips for inspecting stairways (U.S. version)
- InterNACHI, Home Inspection Standards of Practice
- American Wood Council, Prescriptive Residential Wood Deck Construction Guide (DCA 6)
- HomeAdvisor, Stair railing installation cost
- HomeAdvisor, Stair replacement cost
- Homewyse, Cost to install a stairway handrail
- Fannie Mae Selling Guide B4-1.3-06, Property Condition and Quality of Construction
- HUD Handbook 4000.1
Cost figures are modeled from public wage and materials data unless a line says observed. Kept is accountable for the numbers on this page, and corrections go to support@usekept.com. How we price.