See my system if you are interested, which is posted on AG.
I went with Ikea shelve/racks, then reinforced each unit (I have four) by adding 1/4" plywood back panel. The plywood was glued & screwed to the back of each.
I can store ~600 LPs in each, totaling ~670 lbs per unit. They make a great base if you want to place your gear on the top. I can play with the dog right in front of the TT, and the cart never wabbles or skips.
Caution - I would not store 600 LPs on these units WITHOUT the addition of a glue & screw back panel.
Good luck,


