The exact blind size to order for inside or outside the window recess.
How this works
Inside the recess, measure the width at the top, middle and bottom and order the narrowest. The maker takes off about 1 cm for clearance, so do not deduct it yourself. Outside the recess, add 8 cm each side and 8 cm above and below so light does not leak around the edges.
Questions people ask
How do I use the Blinds Size Calculator?
Fill in the fields, starting with “Recess width at top”, “Recess width in middle” and “Recess width at bottom”, and change any other options that match your home. The answer, a drawing and practical tips update as you type, and the Copy link button saves your numbers in a link you can share.
Is the Blinds Size Calculator free?
Yes. The Blinds Size Calculator is free, with no sign-up, and works on phones, tablets and computers. The results are estimates to help you plan, so check with a qualified professional before structural, electrical, gas or plumbing work.