How to measure for wooden windows

Measuring for replacement windows

If you are replacing existing windows you should, in most cases take measurements from outside the property. Plasterboard will be butted up to the frame on the inside making it impossible to take accurate sizes.

  1. Measure the width Where possible measure the distance from brick to brick, take measurements at several points: top, middle and bottom. Use the smallest one of these sizes and deduct 10mm - this will be the width of your new window.

  2. Measure the height Exactly the same as above, take several measurements and deduct 10mm from the smallest size - this will be the height of your new window.
** If you are struggling to find the brick work, for example on a rendered property we reccomend chipping away a small amount of the render at either side of the window thus exposing the brick. (this render would need to be removed anyway when replacing the window).

Measuring from the brickwork is preferred, but alternatively you can use sizes from your existing frame - measure in 3 places and use the smallest sizes (in this case you would not need to deduct 10mm). Please note if you are taking sizes from your existing frame make sure you measure the actual frame and not any timber which may have been planted on after.

Measuring a newly formed opening

  1. Measure the width Measure the brick to brick size at several points of the window opening, take the smallest sizes and deduct 10mm - this will be the width of your new window.

  2. Measure the height Exactly the same as above, take several measurements and deduct 10mm from the smallest size - this will be the height of your new window.
If you are struggling to measure your window please send us a photo and call us for advice.

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Phone: 01782 644871

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Take delivery of your new timber door in as little as 7-10 days*

Once you have placed your order with us we will contact you with a delivery date and time, our punctual drivers are always willing to lend a helping hand.

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*7-10 working days is our average lead time on un-finished bespoke windows and doors (pre-finished windows and doors may be significantly more), this may increase during busy periods.
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