Measuring New Build Openings for Belgian Profile Doors

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For new build door measurement, the opening should be measured only when the rough masonry, floor level and frame reference are finished, because early measurements often change once plaster and screed are done. A written specification with the final sizes, frame depth and swing direction is then approved before production begins at our Tel Aviv workshop.

When to Measure a New Build Opening

In new construction, the right moment to measure is after the block walls, lintels and the floor finish level are set, since those determine the real opening. Measuring during the rough stage can give false results because the frame line, screed height and wall plaster may still change.

Confirm the finished floor level at the door threshold
Check that the opening is plumb and square
Note any reveals, tiles or thresholds to be added later

If your schedule forces an early measurement, mark it clearly as preliminary and recheck before approval.

What to Measure on Site

Measure width at top, middle and bottom, and height at both sides, because openings are rarely perfectly uniform. Record the diagonal as well, since a large difference between diagonals signals a non-square opening that the frame must account for.

Also note the wall thickness, the direction the door should open, the side of the hinges and whether the door sits inside or outside the masonry line. Photos with a tape measure in frame help the team understand the site when reviewing the drawing.

Drawing and Written Specification

After on-site measurement, we prepare a drawing and a written specification that show the frame size, overall door size, opening direction, glazing or panel layout and the Belgian steel-look profile finish. The drawing lets you confirm every detail before anything is made.

Please review the dimensions, swing and any special hardware requirements carefully. Corrections are much easier at the drawing stage than after production.

Client Approval Before Production

Production begins only after the drawing and specification are approved in writing. Approval protects both sides: the builder knows exactly what is being made, and the workshop can plan materials and sequence without guesswork.

If anything changes on site after approval, such as a wall moving or a different floor finish, notify us immediately so the drawing can be updated before the profile is cut.

Production in the Factory

Once approved, the profiles are cut, welded and assembled in our workshop at Rival Street 37 in Tel Aviv. Working in the factory allows precise control of squareness and fit, which is harder to achieve on a busy building site.

Cutting and welding to the approved drawing
Assembly and test fit of the frame and leaf
Finishing with hot-dip galvanizing and powder coating as specified

Installation and Final Checks

Installation should be planned when the opening is ready and the surrounding finishes are protected from damage. The frame is set plumb, level and square, then fixed and sealed according to the specification. Hinges, locks and the swing are checked and adjusted before handover.

Plan for the door to be installed before heavy finishing work where possible, and keep the protective film on until the site is clean.

Frequently asked questions

Should I measure a new build opening before the plaster is finished?

It is better to wait until the masonry, floor finish and plaster are complete, since these change the real opening size. An early measurement can be used as a preliminary figure but should be rechecked.

Why measure the diagonals of an opening?

Comparing the two diagonals shows whether the opening is square. A large difference means the frame will need adjustment to fit properly and sit true.

Do I need to decide the swing direction at the measurement stage?

Yes, it is best to confirm the opening direction and hinge side during measurement, since it affects the drawing and the production plan.

Can changes be made after I approve the drawing?

Changes are possible if they are reported before production starts. Once profiles are cut, modifications become more difficult, so please check the drawing carefully before approving.

Common mistakes to avoid

Measuring too early, before the floor and plaster are finished, is the most common error in new construction. Approving a drawing without checking the swing direction and final dimensions can also cause costly corrections later.

Our recommendation

Take the final measurements after the floor finish level is set, record width and height at three points, and compare diagonals before sending the specification for approval.

Summary

Measure new build openings at the right stage, record every dimension carefully, and approve a written drawing before production so the Belgian profile door fits correctly on installation.

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