Measuring Door Openings for Custom Steel Door Frames

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To order a custom steel door frame, you need the exact clear width, height and wall thickness of the opening, checked at several points, plus the direction of swing and the floor finish. Our team takes these measurements on site, because a frame made from rough estimates often will not fit the wall or the leaf.

Why exact measurement matters for steel frames

A steel door frame is made to measure and then fixed into the wall, so the dimensions have to be right before production starts. Walls in older buildings are rarely perfectly straight, plumb or level, and the opening can vary by a few millimeters from top to bottom.

Measuring carefully at the start avoids remakes, delays and gaps around the frame. It also tells us whether the wall can carry the frame or whether reinforcement is needed.

What to measure in the opening

Before you contact us, note the following for each opening:

Clear width, measured at the top, middle and bottom
Clear height, measured at the left, middle and right
Wall thickness, including any plaster or tiles already on the wall
Direction of swing and which side the handle will be on
Floor finish, for example tiles, screed or threshold height

Write the numbers down room by room and add a photo of each opening.

The on-site visit

After your inquiry with photos, a member of our team visits the site to measure every opening with a steel tape and a level. We check the wall plumb and the floor, note any damage, and confirm the wall material, since concrete, block and drywall-supported openings are fixed differently.

We also discuss the look you want, such as a simple profile or a more decorative design, and whether the frame must match existing iron or aluminum work.

Drawing and written specification

Based on the measurements, we prepare a drawing and a written specification for each frame. The drawing shows the dimensions, profile, anchoring points and how the frame sits in the wall. The specification lists the materials, finish and any special fittings.

You review both before anything goes into production. This is the point to ask questions or request changes, while they are still easy to make.

Production and finishing in our factory

Once you approve the drawing, we cut, weld and assemble the frame in our factory on Rival Street in Tel Aviv. Frames can be finished with hot-dip galvanizing for protection against moisture, or with powder coating in the color you choose.

Working in the workshop lets us check every corner and dimension before the frame leaves the factory, so what arrives on site is ready to fit.

Installation and final check

On installation day, the frame is set in the opening, plumbed and level, and fixed to the wall with the anchors shown on the drawing. We check that the door leaf swings freely and that the gaps around the frame are even.

Final fixing and finishing around the frame should follow our fixing details, so the frame stays firm and the wall around it stays sound.

Frequently asked questions

Do I need to measure the door opening myself before ordering?

It helps to note the approximate width, height and wall thickness with photos, which speeds up the inquiry. Exact measurements are taken on site by our team before we produce anything.

Why do you measure at several points instead of once?

Walls are often not perfectly straight or square, so the opening can differ from top to bottom and side to side. Measuring at several points ensures the frame fits the actual opening.

Can a steel frame be installed in an existing wall?

Yes, in most cases the frame is fixed into the existing wall once we have checked its material and condition. If the wall needs reinforcement, we will tell you during the site visit.

What happens if the wall is not plumb or the floor is uneven?

We account for this during planning by adjusting the frame and fixing details so it sits level and plumb. You will see these adjustments in the drawing before production starts.

Common mistakes to avoid

The most common mistake is measuring only once or from memory, which leads to a frame that does not fit. Ordering before checking the floor finish and swing direction also causes costly corrections later.

Our recommendation

Measure each opening at three points in both directions, and include the wall thickness and floor finish. Send these numbers with clear photos so the on-site visit can confirm them quickly.

Summary

Accurate measurement of the opening, confirmed on site, is the foundation of a well-fitting custom steel door frame. Our process from measurement to installation is designed to keep each step clear and checked.

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