Who knows the introduction of Roman shutter formula?

Roman blinds: roman blinds is divided into inner roman blinds and outer roman blinds. The outer roman blinds can cover the window frame, and the inner roman blinds must be measured accurately, and the upper, middle and lower dimensions should be measured.

Take roman blinds as an example: the width of a single roman blinds is within 1.5m, and only one piece of cloth can be used for calculation.

Roman blinds calculation method: 1 × (window height+boundless) = the number of meters of cloth required.

For example, fabric width 1.5m finished curtain specification: width 1.2m× height1.5m.

Calculation method:/kloc-0 /× (1.5+0.2) =1.70m.

Calculation method of interlining: curtain height +0.04m (the amount of cloth used for each pleat) × pleat number = the number of cloth meters required for interlining.

Because roman blinds wants to wear aluminum strips on the lining, the length of the lining should be added with the fabric needed for pleating.

That is, the length: 1.5m (curtain height) +0.04m (various pleats) ×4 pleats =1.66m.