CALCULATOR
Curtain Cut Length with Supplied Allowances Calculator
Curtain Cut Length with Supplied Allowances Calculator — change the supplied values to calculate curtain cut length with supplied allowances.
Length only; owner chooses allowances. No seam construction or shrinkage allowance inferred.
Accepted inputs: Drop: 0.01 to 100 m; Top allowance: 0 to 1 m; Bottom hem allowance: 0 to 1 m.
How the calculation works
cut length=finished drop+top+hem
Add supplied fabric consumed by top and bottom finishing to the desired finished drop.
Worked example
With drop 2 m, top allowance 0.15 m, bottom hem allowance 0.2 m, curtain cut length with supplied allowances is 2.35 m.
Assumptions and limits
Length only; owner chooses allowances. No seam construction or shrinkage allowance inferred.