Stack back calculator

Use our stack back calculator to work out how much space your curtains will take up when they are open.

What is stack back?

Stack back, refers to the space that the curtains take up when they are fully drawn to the sides of the window or opening. The measurement given is the width of the curtain material when it is stacked or gathered together when the curtains are open.

Stack back is important to consider when choosing your pole or track, as it determines how much space is needed on either side of the window for the curtains to fully open and allow maximum light and visibility.