How To Measure A Box Bay Window For Blinds. Points to consider when choosing blinds for box bays Bay windows are prone to movement and you may find that the widths vary even if at first glance the windows look square.
Bay windows are a little different, so here are a few extra steps to ensure you're measuring like a pro! A box bay window typically has three sides, often two. Place them in one of the angles of your 3 or 5 sided bay window in a way that the cardboard tips touch.
Bay windows are prone to movement and you may find that the widths vary even if at first glance the windows look square.
Now all you need to do is measure the height of your windows. Measuring for bay window blinds: Now all you need to do is measure the height of your windows. Bay windows are prone to movement and you may find that the widths vary even if at first glance the windows look square.