Step 2: Select Size, Profile, and Quantity
Custom Length Sills
*Listed part lengths will fit the suggested window widths listed. In most cases, the sill should extend 1½" – 3" on either side of the window. Make sure that the listed length is acceptable for your particular window opening. If you have a unique window size or have window casing, you may need a custom length sill. Click the button below for instructions on ordering custom length sills.