To spike or not to spike, that, is the question.

….my rack, that is.

I know this is covered repeatedly yet I’ve seen nothing pertinent to it in hollow floor applications. My current boat anchor, er, Sound Anchor rack, poses me an issue in this area of resonance control… or just something to do.

HOWEVER there seems a decision needs be made on either coupling, or de-coupling presently. Given it’s size and weight, I’d sure not want to be dancing it onto and or off of different footer gizmos over and over again.

I would like to know what experiences anyone has in this regard... and with what manufacturers' spikes or what-not.

My floor is hollow... carpet & pad over 5/8 flooring, on 16 OC 2x10 joists.

I'm thinking to add a piece, or two, of plywood (1/2 - 1 inch) underneath the rack and on top of the carpeting & pad, right off. Thus adding foundation & support.... as the weight will be near +/- 425 lbs with the components aboard.

How thick to go doesn’t seem as much the issue as does perhaps, the overall width and length though… as increasing the area coverd should help spred the disbursement of the weight atop it.

Rack exterior dims are roughly, 24 x 18. I was thinking to add two - three inches all around and use no less than ½ inch 5 layer ply.

So if the above doesn’t seem a bad idea, the couple or de-couple item is all that is undecided.

Thanks much, as I do sincerely appreciate the input.