That was my situation, so I decided to build a multi-level shelf layout. You can build it ... 2 x 4 for framework ¾" birch plywood 6 flat metal brackets 16 floor pads (optional, vibration ...

The Plus Shelf by [shurly] aims to make building your own shelves a little ... [shurly] hopes that a metal version of the connectors might be able to eliminate these problems in the future.