The window board is the edge inside a structure at the base of the window, used to close the opening among it and the divider. The development in a room will hit the window sheet and thereafter stream down towards the base of the glass. A window board is a touch of wood (or for our circumstance premium MDF) that is found underneath a window. They are generally implied as window cills. Timber merchants install the MDF window board effectively. A window sheet's fundamental use is to cover the revealed at the base of the window. External dividers are typically a lot thicker than a window and because they are fitted flush with the outside of the divider, you are left with. A window board fitted on the base reveal covers this opening.