All welded except for the back cross member which has a removable bar with pins so that you can remove to load those big items without removing the entire rack.

They are 12′ long and are made with 1 1/2″ square aluminum tube with a 1″ pipe as the top rail. The legs and center cross members are made of 1 1/2″x2″ square aluminum tube.

Racks are rated to carry 1,000 lbs.