Decide on the Mounts
You need to decide on the mounts that have to be installed on the interiors of the window. Next, you need to think about the exterior mounts. At this point, you would require a wood shim which will aid the shutter to stay in position. Drill holes in the shutters with a 1/8 inch drill bit. However, with the recent advancements, the screw holes are pre-drilled and ready for the screws to be wound in.