Mountain View Stones sill stone veneer accessory is a functional and decorative element used to create a finished edge or transition in stone veneer installations. Commonly placed beneath windows, along ledges, or at the base of walls, these sills help direct water away from surfaces while adding a clean, polished look. Designed to mimic the appearance of natural stone, they are available in various styles and colors to complement the overall design. Lightweight and durable, they enhance both the aesthetic and practicality of stone veneer projects. Finish your brick veneer or stone veneer siding project off with Mountain View Stone accessories. With various colors to choose from, you're sure to find exactly what you need to complete your renovation. Sill dimensions: 18" x 2.5" x 3". Our sills measure 3" deep, by 17.5" long, however, you will most likely have a grout joint in between them so for measuring purposes please use 18", by 2.5" tall in the back and 2" tall in the front as our sills have approximately a 1/2" slope from the back to the front for water runoff. Installation is easy, simply install the back flat to the wall, no need to tilt or angle them down. Also, our sills have a drip edge groove cut into the bottom side so water cannot run behind the stone veneer installed underneath the sills. Please note: accessories are add on items and cannot be sold and shipped independently of stone veneer flats. Orders for accessories independent of stone veneer flats will be cancelled.