Reviewing and Approving Window Drawings Before Production

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Before aluminum windows are produced, the client receives a written drawing showing dimensions, opening directions, profiles, glass and finish, and signs off on it. Checking these details carefully before approval prevents errors that are expensive to fix after manufacturing starts.

Why the drawing approval step matters

The approved drawing is the reference for everything that follows. Once you sign it, the factory cuts profiles and orders materials based on those exact details. A missed detail at this stage, such as a wrong opening direction or a wrong glass thickness, usually means remaking parts rather than making a small adjustment.

Taking time to review the drawing is the simplest way to protect your budget and your installation date.

What the drawing should show

A complete window drawing typically includes:

Overall width and height, and the frame size measured on site
Number of leaves and the opening direction of each
Position of handles, hinges and locking points
Profile type and color or finish
Glass type, thickness and any special treatment
Sill, mounting and wall-connection details

If any of these is missing, ask for it before you sign.

How to review the drawing step by step

Start by comparing the drawing with the on-site measurement, not with memory. Check that the dimensions match the opening and that the leaves sit where you expect. Look at the opening direction from inside the room, because drawings are often read from the outside.

Then check the finish, the glass and any safety requirements that apply to the location. Mark every question on a copy so nothing is forgotten in a phone call.

Approving and signing off

When you are satisfied, sign and date the drawing and keep a copy. Your signature confirms that the dimensions, layout and materials are correct. Verbal agreements made after this point should be written down and attached to the approved version so production works from one clear reference.

If you want a change after approval, ask for a revised drawing. The factory will confirm whether production has already started and what the change involves.

From approval to production and installation

After approval, the window moves into production in the factory on Rival Street in Tel Aviv. Profiles are cut and assembled, and the glass and hardware are fitted. Finishing, such as powder coating, is done before the window is delivered.

On installation day, the fitter checks the window against the approved drawing and the opening. Keeping the signed drawing at hand makes this check quick and easy.

Practical tips for a smooth approval

Review the drawing in daylight and with the actual wall and opening in front of you. If you are unsure about a technical point, such as safety glass or the need for a stronger profile, ask the engineer or the factory to confirm it in writing. Exact values for safety and standards are checked with the engineer for each project, not assumed from general rules.

Frequently asked questions

How long does it take to review a window drawing?

Most clients can review a drawing in one sitting, but take your time with the dimensions and opening directions. Ask questions before signing rather than after production starts.

Can I change the drawing after I sign it?

Yes, changes can be requested, but they must be documented in a revised drawing. The factory will confirm whether production has already begun and what the change involves.

What if the measured size on the drawing looks wrong?

Do not sign it. Ask for a check against the on-site measurement, since the drawing must match the actual opening before production.

Who should sign the drawing?

The person who makes the final decisions for the property should sign, such as the homeowner, the building committee representative or the contractor, depending on the project.

Common mistakes to avoid

The most common mistake is signing a drawing without checking the opening direction and dimensions against the actual opening. Verbal changes that are never written on the approved drawing also cause confusion later.

Our recommendation

Check the drawing against the wall and not only against the plan, and mark every question on a printed copy before you call. A short, complete review at this stage saves far more time than a fix after installation.

Summary

Review every detail of the aluminum window drawing against the actual opening, sign only when it is correct, and keep the approved version as the single reference for production and installation.

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