Measuring a top-down bottom-up Roman blind

INSIDE RECESS INSTALLATION (SCREW-FIXED):

The blind width is equal to the glass width including the gasket.

IMPORTANT: The glass width including the gasket must be provided in centimetres with millimetre accuracy (one decimal place). To account for any irregularities in the window frame, the glass width should be measured in three different places and the smallest measurement should be provided.

The blind height is the height of the glass pane.

a = glass width including gasket

b = glass height

ON WINDOW FRAME INSTALLATION (NO-DRILL):

Add approximately 2 cm to each side of the glass width to obtain the correct blind width.

IMPORTANT! When adding the above allowances, the position of the window handle must be taken into account to ensure that the installed blind does not interfere with the handle.

The blind height is the height of the window sash.

a = glass width

b = window sash height