Floor stands for tube amps

I want to DIY. Maple cutting boards and e*ay spikes come to mind but would it be similar (and so much less expensive) to use MDF left over from an Ikea kitchen remodel? Nice "maple" veneer and very dense and heavy. The platforms would be about 12x12.

Also, should I build 4; two under my DCM Time Windows with blue tack or use threaded inserts right into the bottom of the cabinets?

Thanks.