Installing A Window Sill Extender

If filler is too long trim to the measured length.

Installing a window sill extender.

Mark a reference line on the wall on each side of the window. 30 door 30 32 door 32 34 door 34 step 3 installing sill extender with the sill extender cut to the proper length attach the extender to the sill that is on the door system. One piece for the head and one for the sill. Measure the distance between the two wall marks then add 1 1 2 inches to factor in your overhang on each side.

A sill extender is shipped with your order to allow height adjustments and is field trimmable. Dows before window installation. I typically use for an overhang. Determine your window sill horn overhang.

Sill extender is field trimmable for any necessary adjustments. A permanent extender requires the installation of brackets into the wall studs beneath the window. Use sandpaper to make sure the edge is flush and that it is smooth as well. Install filler by snapping leg of filler into.

Apply firm pressure to the adapter at the tape location to ensure proper adhesion to the window frame. Use a saw and cut the window sill flush with the wall on either side of the window. Install vinyl sill extender by sliding the extender up into the frame channel. If an extender isn t permanently fastened to a wall or sill then position your plants carefully so the extender doesn t become stressed near an edge and collapse.

Check this dimension against the shorter pieces of frame pocket filler. To see hands on demonstrations of techni. Casements and awnings are not compatible with a sill angle or head extender. You can replace your entire window sill to get the space you want or you can simply extend the window sill you already have.

Step 1 finishing the current window sill. The aluminum sill extender is sized for a 36 wide door narrower units will need to have the extender cut to the same size of the sill.