The 9-Slot van rack is designed to fit perfectly in a compact cargo van or covered truck where there might be a height clearance issue. This rack comes with removable masts that can help to solve this problem. 
Dimensions: 30"x30.25"x27.5" mast (Center to Center )
 
Made in the USA
Steel construction (9-lite models)
Powder coated black
Patented Finger-Lock™ system
Bolt-on installation
3" removable mast height: 24" 
Space between masts: 1.5"