How to Measure for Roller Blinds

First of all, decide if your blind is to be fitted inside or outside the recess.

If the blind is to be inside the recess give the recess measures as described below.

For blinds fitting outside the recess give the exact size required (include the brackets). The fabric of the blind will be approximately 3.5cm narrower than the full width including brackets.

Always use a metal tape measure as a cloth one can stretch and give an incorrect measure.

Recess

Check that your recess is deep enough to fit the blind into, also bearing in mind any obstructions such as handles, etc.

Take 3 measurements for the width of the window recess as shown. Take the smallest of these measurements. This is the recess width.

Take 3 measurements for the drop of the window recess as shown in the picture. Take the smallest of these measurements. This is your recess drop.

Do not deduct anything from these measurements, we will make the necessary adjustments to ensure the blind fits perfectly

Exact

These are the measurement we need if you want you're blind to fit on the outside of the window recess.

Measure the width and height of your recess and add a little extra on the sides, top, and bottom.

The amount to add is really a personal choice however we suggest you add 10cm at the top and bottom, and at least 5cm on either side to ensure adequate coverage.

Don't forget to take into account any obstructions such as radiators when adding on the bottom overlap.

Top Tip

If measuring an existing blind, measure across the width of the fabric only and ignore any brackets. Then add 35mm(3.5cm) to this size and order your blind as exact size.

Measuring for square bay windows

First, decide if your blinds will be top fixed or face fixed.

(Top fixed blinds will need an allowance of 50mm for blinds up to 2000mm and 70mm if larger)

(Face fixed blinds will need an allowance of 60mm for blinds up to 2000mm and 80mm if larger)

There are two options for measuring blinds. Option A gives better coverage across the front of the window whilst Option B gives greater coverage at the sides.

Option A

Measure the full width of the bay and order this blind as a recess measure.

Measure both side windows however, this time deduct the allowance for the brackets from this measurement. Again order these blinds as recess measures to allow for clearance between the blinds.

Option B

Measure both side windows from the front to the corner and order both of these blinds as recess measures.

Next measure the full width of the bay and deduct double the bracket allowance (once for each side blind) and order this as a recess blind.

Important!

Whichever option you choose you will need to make additional allowances for any obstructions such as handles etc. that protrude into the bay.

Drop

To measure the drop simply measure from the top of where the blind will sit (normally the ceiling) down to the cill or the lower position.

Measuring for angle bay windows

First, decide if your blinds will be top fixed or face fixed.

(Top fixed blinds will need an allowance of 50mm for blinds up to 2000mm and 70mm if larger)

(Face fixed blinds will need an allowance of 60mm for blinds up to 2000mm and 80mm if larger)

Using pieces of A5 card or paper cut or fold them into two strips. Ensure the width of strips A & B is equal to the allowance size as above.

Move each piece of card or paper towards each other until they just touch, as shown at X in the diagram. Using a pencil, lightly mark the window frame or cill at this point.

Repeat this process for each angle around the bay.

Measure from the edge of the window to the first mark and note this measurement. Now measure from the first mark to the second and note this measurement, and so on around the bay until you return to the final corner.

Now double-check these measurements and order the blinds as recess measures. This will ensure adequate clearance between the blinds while still providing adequate coverage.

Important!

Whichever option you choose you will need to make additional allowances for any obstructions such as handles etc. that protrude into the bay.

Drop

To measure the drop simply measure from the top of where the blind will sit (normally the ceiling) down to the cill or the lower position.