Wooden Venetian blind Stacking sizes

The stacking size refers to the area covered by the blind when fully drawn up.

50mm and 25mm blinds:
When 25mm (1") wooden blinds are fully retracted the approximated distance between the top of the headrail and the bottom of the bottom rail will be 109mm (7.5") for the first 610mm (24")blind drop plus 50mm (2") for each additional 305mm (12") blind drop.

For 50mm (2") blinds these figures will be 165mm (6.5") and 30mm (1.25") respectively