I’ve had a fairly large collection of vinyl that has been sitting in cardboard boxes for quite some time. Decided to dust off the collection and build some better storage for it. Researched on-line and found some excellent plans from the Audiokarma forum.

 
The casters I used are urethane wheels with precision ball bearings, rated for 275lbs.  Perhaps a little overkill, but they work great!
I used 3/4″ oak veneer plywood for the cabinet, and stained it with a combination stain/poly.
Pretty pleased with the results – will have to build another one to hold the rest of my collection!