Recommendations for custom amp stands?

There are materials for the casing to contain the sand that can offer a very attractive effect on how local kinetic energy is dissopated / sampled. 

Using such a material in conjuntion with multiple grains as a filler, will be an upgrade to a more common design.

Successfully tidying up an End Sound will create a condition where Tonal differences are much easier to discern.

This is different to using a material to influence a particular tonality. 

+1 on Timbernation.  Beautiful woodwork, gets them off of the floor, solid wood.

So where can i get some of that Panzerholz, Delignit or similar in the USA (ideally in Florida).  I dont need a whole 4x8 board.

@robbiesd  I agree with you.  With the design I used, the top panel is floating and completely independent for the box carcass.  This is key, as only the floating top provides a break in the vibration chain as it were.

@ervikingo The interest in P’holz, will show it has a growing popularity as a material, this is close to 20 years back when the Product first become used for Audio purposes.

For the application you are considering, have a read up on the Taiko Daiza Sub Plinth. This not a recommendation to buy, as Taiko have a substantial mark up on the Raw Material price.

To keep you properly informed on which is the most selected Board Type. 

Resin Impregnated Densified Wood Board, is produced from a Delignified Wood Veneer.

The assembly of Veneers is a Cross Grain Orientation and finished as the assembled board in a Heated Vacuum Chamber, where the Boards Veneers are Impregnated with a Phenolic Type Resin, and subsequently compressed to 50% of the Ply Thickness. 

Veneers are typically 0.8mm - 1.2mm and compressed to 0.4mm - 0.6mm

Quantity of Wood Veneers to produce the full Ply in a common selected Board Brand and Thickness (P’holz) is x 50 veneers, producing a 25mm Thick Board Material. 

A friend who become a convert after being a BB Plywood advocate for many years, as a result of using their P'holz reserves, has in the past week, received a Permali Board in both 12mm and 25mm.

Buying either Brands Material produced to the above assembly produces a Material that have almost identical measurements for the intrinsic Dissipation / Damping Properties.