Calculatium

Chair Upholstery Fabric Calculator

Estimate fabric for equal rectangular chair panels from seat dimensions, allowances, chair count and usable roll width, without rotating pieces.

Enter your values

The starting values are editable examples. Results update when you change your inputs.

Example: 40
Example: 40
Example: 1
Example: 1
Example: 0
Example: 100

Your result

Updates as you change your values.

Enter values to calculate.

How it is calculated

Panel dimensions = piece dimensions + two edge allowances. Panels per row = floor(roll width / panel width). Length = ceiling(total panels / panels per row) × panel height.

Worked example

One 40 × 40 cm piece without allowances on a 100 cm-wide roll uses one 40 cm row. A 110 cm-wide piece cannot fit that roll in the fixed orientation.

Before you calculate

Measure the bounding rectangle needed for each upholstered part, not just its visible surface. Enter the number of equal pieces per chair and the total chair count. Add a realistic edge allowance for the chosen construction method.

Interpreting the result

The layout assumes identical rectangles and a fixed direction. It does not model curved panels, foam thickness, grain matching or mixed pieces. Patterned upholstery and attachment methods can require extra material beyond this estimate.

Use the units shown beside each field. Monetary fields labelled EUR stay in euros; changing language does not exchange currencies. Results are estimates under the stated assumptions.