Organize your tools and equipment by doubling your shelf space with this easily installed storage shelf. Three levels of adjustability allow you the option of storing short or tall items. Made from 16 ga. steel with a zinc undercoating and a long lasting gray powder coat finish. Available for 24", 30", 36" and 48" wide by 18" deep underbed boxes. Installs in minutes without drilling or bolting. Check your box against the dimensions listed below to verify fit.