Corner Windows

Butt and Bypass Shades

When two shades butt against each other at a corner, as shown in the overhead views at right, one shade is the "butt" shade and the other is the "bypass" shade. Measure each shade separately using the procedures described, then subtract headrail depth from the butt shade to obtain the proper ordering width. With outside mounts, remember to allow for overlap on the sides and at the bottom.

Refer to the mounting chart information for headrail depth for specific products.

When NOT Using Butt and Bypass

Some window treatments cannot use the butt and pass. They are then measured to meet in the corner.

1. Measure the width of both openings to the common corner.

2. Deduct the necessary depth of the treatment from the width of each measurement so they will meet in the corner but not overlap. Note: If spacer blocks or extension brackets will be used for extra clearance on outside mounts, add the amount of extra clearance to the deduction.

3. Order the width less the deduction for each window.