HOW TO MEASURE A WINDOW HINGE

The window on the right-hand side is an example of a top-hung window - the window pivots out from the top of the frame.

You might find that you're unable to find an exact match to your window hinge measurement. If this is the case, we suggest purchasing the closest match you are able to find.

Measure the width of the hinge where it attaches to the window frame (see B measurement left - click on the image to expand). Standard width is 17-18mm; 15-16mm wide hinges are classed as “slimline”.

The final measurement is the stack height. The easiest way to measure stack height is to open the window just wide enough to slot a ruler between the window and the frame. Put the ruler against the frame and estimate the distance to the bottom of the window itself. Hinges come in two stack heights: 13mm and 17mm, so you should be able to judge which would be the most appropriate size for your window from this estimation.