Bias Binding Bench
Sewing / Practical workbench

Worked examples

Three reproducible scenarios, with the complete inputs and calculated outputs.

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Worked scenario

Base example

Binding length needed is 8 m. All other inputs remain at the base values.

InputValueUnit
Binding length needed8m
Cut strip width50mm
Area allowance15%
Usable fabric width110cm

Calculated results

ResultValueUnit
Fabric area including allowance0.46m2
Approximate square side67.8233cm
Length at usable fabric width0.4182m

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Worked scenario

Smaller first input

Binding length needed is 6.4 m. All other inputs remain at the base values.

InputValueUnit
Binding length needed6.4m
Cut strip width50mm
Area allowance15%
Usable fabric width110cm

Calculated results

ResultValueUnit
Fabric area including allowance0.368m2
Approximate square side60.663cm
Length at usable fabric width0.3345m

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Worked scenario

Larger first input

Binding length needed is 9.6 m. All other inputs remain at the base values.

InputValueUnit
Binding length needed9.6m
Cut strip width50mm
Area allowance15%
Usable fabric width110cm

Calculated results

ResultValueUnit
Fabric area including allowance0.552m2
Approximate square side74.2967cm
Length at usable fabric width0.5018m

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Measure the project perimeter and add joins and tails first, then calculate fabric from the full required strip length.