1) Maple ,beech and pearwood esp. in marine grade plys are quite good.
2) The support should have adjustable spike provisions at the feet and for decoupled support of the shelving
3) You can achieve greater isolation from vibrations transmitted thru the flooring by placing the rack on a spike isolated subplatform.
4) The major goals should be to make the rack framework as rigid and light as possible rather than the more inuitive heavy,massive and deadened approach.The maple/birch/pear shelving itself will provide the damping means for dissipating internal and airbourne energies and the spikes will minimise transfer of energy passed via the floor and house structure.
2) The support should have adjustable spike provisions at the feet and for decoupled support of the shelving
3) You can achieve greater isolation from vibrations transmitted thru the flooring by placing the rack on a spike isolated subplatform.
4) The major goals should be to make the rack framework as rigid and light as possible rather than the more inuitive heavy,massive and deadened approach.The maple/birch/pear shelving itself will provide the damping means for dissipating internal and airbourne energies and the spikes will minimise transfer of energy passed via the floor and house structure.