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THE FEUTEX TOOLKIT

Window Blind Recess Fit

Calculate order dimensions from measured recess dimensions and explicit manufacturer deductions.

Household workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaOrder width = Math.min(width_top,width_middle,width_bottom)-width_deduction; Order height = height-height_deduction; Width variation = Math.max(width_top,width_middle,width_bottom)-Math.min(width_top,width_middle,width_bottom)

Worked example

Inputs

Width top
100 cm
Width middle
99.7 cm
Width bottom
99.8 cm
Height
150 cm
Width deduction
0.5 cm
Height deduction
0.5 cm

Expected results

Order width
99.2 cm
Order height
149.5 cm
Width variation
0.3 cm

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter the measured quantities and your own planning assumptions.
  2. Review all calculated outputs and the stated limitations.

Try this example

{
  "width_top": 100,
  "width_middle": 99.7,
  "width_bottom": 99.8,
  "height": 150,
  "width_deduction": 0.5,
  "height_deduction": 0.5
}

Accuracy and scope

Use only deductions required by your supplier. Some suppliers already deduct clearance; avoid deducting twice.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.