CALCULATOR
Blind Width from Custom Inside Clearance Calculator
Blind Width from Custom Inside Clearance Calculator — change the supplied values to calculate blind width from custom inside clearance.
Width only; owner supplies clearance, no manufacturer fit or installation recommendation. Declared opening minimum exceeds total clearance.
Accepted inputs: Measured opening width: 0.1 to 10 m; Chosen clearance each side: 0 to 0.04 m.
How the calculation works
blind width=opening−2clearance
Deduct chosen clearance separately on both sides of the opening.
Worked example
With measured opening width 1.2 m, chosen clearance each side 0.005 m, blind width from custom inside clearance is 1.19 m.
Assumptions and limits
Width only; owner supplies clearance, no manufacturer fit or installation recommendation. Declared opening minimum exceeds total clearance.