How about this for storage/shelving?

was the "workbench" custom made? that looks slick! I think the tallest racking I have is 8 foot but I put sheet metal up top. Much lighter and easier to get down while on a ladder.
Thanks. yes, the bench was custom made. I got the table tops (36" x 96")through Grainger at my work. I had to cut the flange along the bottom edges to fit which was a PITA, it' not the best cutting job. I welded square tubing to the bottom so they would sit in the rack beams. the other goal was to make it so that if something like a transmission was on it it wouldn't make loud metallic noise when it was moved around. It was a project!

I have two of these tops and I still have not completed the second one - it's still sitting loosely on the rack beams without supports. Right after I finished the first one I started working on my Duster and never got back on it. I'll finish it at some point.

Measure once, cut twice. I just tacked it in multiple spots, no long beads. It's plenty sturdy.
IMG_1315.JPG

Here's the underside. You can sort of see how the supports sit on the step of the rack beams.
IMG_1316.JPG

This is how the shelf was done looking from the back. The bench is 36" and really too deep to use all of it effectively so I made a shelf to put stuff on. After this, there were more vertical supports welded in behind the riser. The shelf sits on top of the riser supports, you can't see this stuff with it in place. It worked out OK.
IMG_1339.JPG

Sorry to derail the original intent of the thread.