How to Measure a Balcony for a Custom Railing Installation

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To measure a balcony for railing, record the exact length of each open edge, the height from the finished floor to the top of the railing, and the position of every corner, post and wall fixing point. Take each measurement twice, note any obstacles or slopes, and send the figures with photos so the factory can prepare a precise drawing.

Before You Start Measuring

Good measurements begin with a clear plan. Walk the balcony once and decide which edges will receive the railing, which will be solid wall, and where a gate or opening should go. Note whether the balcony has a tiled, concrete or stone floor, because the finished floor level is the reference point for every height. Have a steel tape measure, a notebook or your phone, a spirit level and a helper if possible. Photograph each edge from a few steps back so the overall layout is easy to picture later.

Measuring the Length of Each Edge

Measure every open side from one wall or corner to the next, following the actual edge rather than an imagined straight line. If the balcony has an angle, a curve or a recess, measure each segment separately and label it, for example 'north edge, part one'. Record the length in centimeters and keep the tape flat and taut. Where a segment is longer than the tape, mark the midpoint and add the two halves. Write down any column, pipe or drainage outlet that interrupts the edge, since it will affect the layout of the bars or posts.

Measuring Height and Checking the Floor

Railing height is taken from the finished floor surface, not from the concrete slab beneath the tiles. Measure from the top of the tile at the spot where the railing will stand down to the desired top of the handrail. Check whether the floor is level by placing a spirit level across it. If the balcony slopes toward the drain, measure height at both ends of each run and note the difference, because the base of the railing may need to follow the slope.

Measure height at each end of every run.
Note any step, threshold or raised ledge.
Confirm the required height with your engineer or the installer.

Marking Posts, Corners and Fixing Points

Mark every corner, every post position and every point where the railing will be fixed to the wall or to the floor. Measure from the nearest fixed reference, such as a wall corner or the edge of a column, and write the distance down. Check whether the surface is concrete, brick, or a hollow block wall, because the fixing method depends on it. Look for hidden items such as water pipes, electrical conduit and reinforcement that could be disturbed when drilling. If you are unsure what lies inside a wall, ask a professional before drilling.

Taking Measurements Accurately

Accuracy matters more than speed. Measure every length at least twice, and if the two results differ, measure a third time. Check that the tape has not been bent or stretched at the hook end. Measure on a calm, dry day so the floor is stable and you can see the edges clearly. Use the same unit throughout, centimeters is common in Israel, and round to the nearest millimeter if your tape allows. Write the figures next to a simple sketch so the numbers are never separated from their location.

Preparing Your Measurements for the Factory

Once measurements are complete, prepare a simple package for the factory. Include a labeled sketch of the balcony, all lengths and heights, the positions of gates and posts, and clear photos of each edge and fixing wall. Mention the type of finish you prefer and any design features such as glass infill or a handrail. Our team checks this information, then arranges an on-site visit if needed before a drawing and written specification are prepared for your approval. Nothing is produced until you have reviewed and approved the drawing.

Frequently asked questions

Do I need a professional to measure the balcony?

You can take the basic measurements yourself, but the factory or installer should confirm them on site. A professional check catches slopes, uneven walls and hidden obstacles that are easy to miss.

Should I measure the railing height from the slab or from the tiles?

Measure from the finished floor surface, meaning the top of the tiles or stone. This gives the correct height for the person standing on the balcony.

What if my balcony is not a perfect rectangle?

Measure each segment separately, label it, and sketch the shape with angles and curves marked. Irregular balconies are common, and clear segment measurements make the drawing accurate.

Can I send my measurements by WhatsApp?

Yes, send your sketch, numbers and photos by WhatsApp. The team will review them and let you know whether a site visit is needed before preparing the drawing.

Common mistakes to avoid

The most frequent errors are measuring from the concrete slab instead of the finished floor and forgetting to note corners, posts and obstacles. Always measure twice and record the location of every item, not just the length.

Our recommendation

Draw a simple sketch first, then write each measurement directly on it while you are standing at the balcony. Include photos of each edge, because they reveal details that numbers alone can miss.

Summary

Measure every edge, the height from the finished floor, and all corners and fixing points, then check each figure twice. Send the sketch and photos so the factory can prepare an accurate drawing for your approval.

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