How Do You Measure a Glass Railing Before Ordering?

Start With the Total Length of the Run

Begin by measuring the full length of the edge where the railing will go. Measure along the actual line of the balcony edge, stair, or terrace, not a rough estimate from the floor plan. Mark each change of direction, such as a corner, a wall return, or a niche, and measure each straight section separately. Writing each segment on a simple sketch makes it much easier to match the numbers later.

If the edge is not perfectly straight, measure at both ends and at the middle. A difference of a few centimeters between readings is normal in older buildings and should be noted, not ignored.

Measure the Height Correctly

Height is measured from the finished floor, or from the nosing line on a staircase, up to the intended top of the glass railing. Use the finished floor level, meaning after tiles, screed or decking are in place. Measuring from the rough concrete slab is one of the most common reasons a railing ends up too low or too high.

For stairs, measure the height at the front of each step, not at the back, and note the slope of the flight. Israeli railing requirements are described in the general standard SI 1142, but exact figures for your project should be confirmed with your engineer.

Record the Fixing Surface and Posts

Glass railings are attached either to the floor edge, the side of a slab, a wall, or a stair stringer. Note what the base material is, whether it is concrete, tile over concrete, steel, or timber, because it determines the type of fixing. Check the thickness of the slab or wall and whether there is enough solid material to take anchors.

• Type of base: concrete, steel or timber
• Thickness of the edge or wall
• Any existing tiles, cladding or waterproofing
• Position of drainage outlets or pipes

Note Corners, Gates and Openings

Every corner, gate, opening, or change of direction needs its own measurement. Indicate where a glass panel should stop, where a gate will swing, and where a handrail, if any, will continue. Mark the side on which a gate will open, since this affects the hinge and latch positions.

If the railing meets a wall, measure the distance from the wall to the first post or clamp, and state whether the glass should run flush against the wall or stop short of it.

Take Photos and a Simple Sketch

Photos help the manufacturer understand the site faster than a verbal description. Take a wide shot of the whole edge, a close-up of each corner or joint, and a photo of the surface where the railing will be fixed. Include a person or a known object in one photo so scale is clear.

A rough sketch with the measurements written on each segment is enough. Label the segments A, B, C and so on, and note the height next to each one. Keep the photos and sketch together so they can be sent in one message.

Check Everything Before Sending the Details

Before sending your measurements, read them back and compare them with the sketch. Check that each segment length matches the total and that the heights agree with each other. If the floor is still being finished, plan to measure again once tiles or decking are down, and say so when you submit the request.

Final dimensions are normally confirmed by an on-site measurement from the manufacturer before production starts, so your numbers are a strong starting point rather than the last word.

Frequently asked questions

Can I measure the railing myself?

Yes, you can take the initial measurements, photos and a sketch yourself. Most manufacturers still carry out an on-site measurement before production to confirm the final dimensions.

Should I measure before or after the tiles are laid?

Measure after the finished floor is in place, because the height is taken from the finished surface. If tiling is still to come, note that and plan a second measurement.

What if my balcony edge is not straight?

Measure at several points and record each segment separately. Note any irregularity so it can be accounted for during the on-site check.

Do I need to know the exact safety requirements?

You should be aware that Israeli railing requirements exist under the general standard SI 1142. Confirm the exact requirements for your project with your engineer.

Common mistakes to avoid

The most common errors are measuring from the rough slab instead of the finished floor, and forgetting corners, gates or wall returns. Skipping photos also leads to misunderstandings about the site.

Our recommendation

Measure every segment twice, write the numbers on a sketch, and send photos with your request. Ask for an on-site measurement before production so the final figures are verified.

Summary

Measure each segment's length, the height from the finished floor, the fixing surface and all corners or gates, then send these with photos. Careful measurement makes the order accurate the first time.

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