EXPANDABLE PULL OUT CABINET SHELF, WOOD SIDE MOUNT INSTALLATION (Cabinet size can be NO SMALLER than 11.5"W and can be NO LARGER than 20") Expandable pull-out cabinet shelf adjusts from 12 inches to 20 inches wide Easy installation; no cutting, sawing, or leveling All-natural wood construction complements many decors 20" D X 12" (expands 12"to 20"W) X 3"H Measures 12 inches to 20 inches wide by 20 inches deep by 3 inches high; weighs 6 pounds SIDE MOUNT INSTALLATION Expandable pull-out cabinet shelf adjusts from 12 inches to 20 inches wide Easy installation; no cutting, sawing, or leveling All-natural wood construction complements many decors 20" D X 12" (expands 12"to 20"W) X 3"H. It FITS cabinets upto 26" Deep Measures 12 inches to 20 inches wide by 20 inches deep by 3 inches high; weighs 6 pounds