How to Measure Windows and Doors for Aluminium Fabrication (Send on WhatsApp)

By Supreme Aluminium & Hardwares, Selaiyur · Updated

Quick answer: Measure the width of the opening at the top, middle and bottom, and the height at the left, centre and right, in millimetres or inches. Use the smallest width and smallest height. Send these sizes, a photo of each opening, the window type (2-track/3-track/door/mesh) and the colour on WhatsApp for a quote.

What you need

A steel measuring tape, your phone camera, and a notebook or WhatsApp to note sizes.

Step-by-step

  1. Measure the width of the opening at the top, middle and bottom.
  2. Measure the height at the left side, centre and right side.
  3. Write down the smallest width and smallest height. Walls are rarely perfectly square, and the smallest size makes sure the frame fits.
  4. Number each window (W1, W2, D1…) and note which room it is in.
  5. Take a photo of each opening from straight in front.
  6. Note the wall thickness if you want a 3-track window — it needs a deeper frame.

What to send for a quote

  • Sizes for each opening (width × height).
  • Type: 2-track, 3-track, fixed glass, door, partition or mosquito-mesh shutter.
  • Colour: Ivory, Black, White, Silver, Brown or Nut Brown.
  • Glass: plain, frosted or toughened.
  • Your area (e.g. Tambaram, Chromepet, Medavakkam) for delivery.
Tip: Measure in millimetres if you can — it avoids rounding errors that cause gaps around the frame.

Common mistakes

  • Measuring only once in the middle.
  • Measuring the old frame instead of the wall opening when replacing windows.
  • Forgetting to mention if tiles or plastering are still pending — that changes the final opening size.

Send your sizes to Supreme Aluminium on WhatsApp and we will reply with a quote, usually the same day.

Need help choosing? Ask the shop.

Send a photo or your sizes on WhatsApp — we reply fast.

Frequently asked questions

Should I measure in inches or millimetres?

Either works, but millimetres are more accurate. Just tell us which unit you used.

Do you come and take measurements?

Call us to check — for larger orders in nearby areas we can arrange a site visit.

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