Measuring a Staircase Correctly Before Ordering Handrails

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To measure a staircase for a handrail order, record the total run length along the nosing line, the rise height at each side, the distance from the wall to the rail position, and every landing, turn or bend. Take each measurement at least twice and note where it was taken so the factory can draw an accurate specification.

Why Accurate Staircase Measurements Matter

A handrail is made to measure, so the numbers you send decide how well it fits. Small errors in length or wall spacing can mean brackets that do not line up, rails that are too short at a turn, or a finished piece that has to be remade. Taking careful measurements before you order saves time for you, your contractor and the workshop.

Measuring once is rarely enough. Stairs in older buildings are often uneven, so it helps to check each figure twice and write down what you found.

What to Measure on a Straight Staircase

Start with the total length of the run, measured along the line of the stair nosings from the bottom step to the top. Next, measure the vertical height from the floor at the bottom to the floor at the top. Also note the number of steps and the step depth and height if they are not uniform.

Total run length along the nosings
Total vertical rise
Number of steps
Distance from the wall to where the rail will sit

Measuring Landings, Turns and Bends

Many staircases include a landing, a quarter or half turn, or a curved section. Each part needs its own measurement. Measure the length of each straight section separately, then the length around any corner, and note the angle of the turn if you can.

Mark where each section starts and ends on a simple sketch. A rough diagram with arrows and numbers is often more useful to the drafter than a list of figures alone.

Checking Wall Clearance and Rail Height

Measure the distance from the finished wall to the position where the handrail will be fixed. This clearance affects the bracket size and how comfortably a hand can grip the rail. Also confirm the height at which the rail should sit, which is usually set by local requirements and the project's design.

Standard references such as the Israeli railing standard SI 1142 cover these topics in general terms. Exact values should be confirmed with your engineer or architect for your specific project.

Tips for Measuring Accurately

Use a steel tape measure and keep it straight and taut. Measure from fixed points such as floor edges and wall corners rather than skirting that may be removed later. If the walls or steps are not finished yet, note that clearly, since final dimensions may change once tiling or plaster is complete.

Measure every figure twice
Round to the nearest millimetre and record the unit
Photograph each section with the tape in view

Sending Your Measurements to the Workshop

Send your sketch, photos and written measurements together. Include the floor layout, the side the rail will be on and any obstacles such as switches or windows near the stairs. The workshop will prepare a drawing and written specification for your approval before production starts.

Once you confirm the drawing, the handrails are made in the factory and finished before installation, so accurate measurements at this stage protect the whole process.

Frequently asked questions

Should I measure the stairs before or after the walls are finished?

Measure when the walls and floors are close to their final state, because plaster, tiles or flooring can change the clearance. If work is still ongoing, note that in your request so the drafter can plan around it.

Do I need to measure both sides of the staircase?

Yes, if the handrail will go on both sides. Measure each side separately, since walls are rarely perfectly parallel and the two sides may differ.

What if my staircase has a curved section?

Measure the curve as accurately as you can, including its start and end points and approximate radius. Photos with a tape held along the curve help the workshop understand the shape.

Can I send rough measurements first?

You can send rough figures for an initial inquiry, but the final order should be based on a confirmed on-site measurement. This avoids changes after production has started.

Common mistakes to avoid

The most common mistakes are measuring the wall-to-rail distance from an unfinished surface and forgetting to measure landings or turns. Mixing units or skipping the sketch also causes confusion.

Our recommendation

Take a sketch, photos and two sets of measurements for every section, and let the workshop confirm the final drawing before anything is produced.

Summary

Measure the run length, rise, wall clearance and every landing or turn, double-check each figure and send a sketch with photos. Accurate data leads to handrails that fit correctly the first time.

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