To measure a uPVC door opening, accurately measure the brickwork opening on the outside, both in height and width.
Accurate Measurement is Key
Measuring correctly is vital for a smooth uPVC door installation. Here’s how to get it right:
Steps for Measuring Your uPVC Door Opening
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Measure the Brickwork:
- Focus on the actual brick opening, not the old frame or door.
- Measure directly from brick to brick on the outside of the opening.
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Take Multiple Measurements:
- Measure the width in at least three different places (top, middle, bottom).
- Measure the height in at least three different places (left, center, right).
- This helps identify any inconsistencies in the brickwork.
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Identify the Smallest Measurement:
- Note down all measurements for both the width and the height.
- From all the measurements, take the smallest width and the smallest height measurement.
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Calculate the Fitting Allowance:
- Deduct 10mm from both the smallest height and width measurements. This 10mm allowance is crucial, as it provides 5mm of space on each side of the frame for fitting the new door.
| Measurement | Action |
|---|---|
| Brick Opening | Measure width and height in multiple locations. |
| Smallest width | Identify the smallest width measurement. |
| Smallest height | Identify the smallest height measurement. |
| Final Size | Subtract 10mm from both. |
Example:
- Let's say your smallest brickwork width measurement is 900mm and your smallest height is 2100mm.
- You would deduct 10mm from both measurements:
- Width: 900mm - 10mm = 890mm
- Height: 2100mm - 10mm = 2090mm
- Therefore, the size of the new door you need is 890mm wide and 2090mm high.
Why These Steps are Important:
- Avoids Incorrect Sizing: Measuring the brickwork accurately ensures the new door frame will fit properly within the opening.
- Allowance for Installation: The 10mm deduction provides the needed space for adjustments and ensures the door frame isn't too tight against the brickwork. This is essential for expansion and contraction due to temperature fluctuations.
- Ensures Squareness: Multiple measurements help verify the opening is square.
By following these steps, you'll obtain the correct measurements for your new uPVC door, leading to a successful installation.
