4 Shelf Fixed Height Ventilated Heavy Duty Storage Unit 18 x 36 x 54 Organizer System for Home, Garage, Basement, and Laundry, Black Declutter and keep your space organized by using the heavy-duty interlocking storage unit;   Versatile organizer that can be used in your home, office, garage, and more Heavy duty shelf that is constructed with durable plastic materials which can hold up to 150 pounds per shelf and 600 pounds overall, allowing you to store big and heavy items without tipping over Our shelf that allows you to connect the unit to another shelf unit, allowing you to expand and customize your storage unit according to your needs Built with 4 ventilated shelves which provides ample storage space for your needs while allowing air to flow inside your items which keeps your items safe from water and molds Assembles easily without tools to ensure a stress-free setup;   Black storage shelf that measures 36 inches in length by 18 inches wide by 54.50 inches high and weighs 17.69 pounds