I have twelve of the roughly 2' squares, and an additional 32"x24" piece for the throne. So this makes a roughly 6'x8' deck. I also have a 5'x8' jute carpet that I will throw in if you want it. The new V2 panels go for $250 for a pair, so a deck this size would set you back $1500.
From Auralex:
Description
Stages and traditional drum risers sympathetically vibrate (resonate) with the drums and/or PA system. These resonances feed back to the drums and are then picked up by the mics. The Auralex HoverDeck™ is specifically engineered to reduce coloration from floor resonance by decoupling the drum kit from the structure, resulting in a tighter, more pure sound for both studio and FOH.
The HoverDeck™ has a rugged MDF laminate core & web-like ISO-Puck modular riser that minimizes structure-borne sound transmission and sympathetic vibrations between drums and hardware. Your drums can finally have rumble-free purity of tone like you’ve never heard before.
The HoverDeck™ is available in sets of (2) panels each measuring – 23¾” x 23¾” x 1″. A total of 8 panels can accommodate a typical four to five-piece drum kit, and a total of 12 or more panels can be configured for larger drum kits and touring applications. All configurations utilize a set of low-profile isolating boards that assemble quickly via strategically placed hook and loop fasteners.