Compatibility: The overhead garage storage rack is compatible with joist spacing of up to 24". If the ceiling joist spacing is greater than 24", however, it is only compatible with 48" spacing. Clear Floor Space: The overhead garage storage rack utilizes unused ceiling space, maximizing valuable floor space in the garage. It allows for vertical storage, maximizing storage capacity while preserving the maximum amount of floor space. Large Capacity: The 4'x8' overhead garage storage rack holds up to 600 lbs., providing a reliable storage solution. This rack offers ample space to store various items while being capable of safely supporting heavy loads. Adjustable Height: The six vertical support bars can be adjusted from 22" to 40", making the rack suitable for different garage ceiling heights and accommodating items of various sizes. Sturdy and Durable: The integrated design of mesh panels and frames ensures durability and prevents easy separation. The thick, 8 mm screws have gone through strict quality testing. The 4ftx8ft overhead garage storage rack utilizes unused ceiling space, freeing up valuable floor space in the garage. It allows for vertical storage, maximizing storage capacity while preserving the maximum amount of floor space.It holds up to 600 lbs., providing a reliable storage solution. This rack offers ample space to store various items while being capable of safely supporting heavy loads.