Help Me Choose Timber Nation Rack-- All Wood or Threaded Rod?

Thanks to you all for your input-- especially you current Timber Nation owners!  Dave; the capacity to change shelf height is, no doubt, a nice feature but in the end, I've decided I prefer the look of wood (higher WAF, too). I'm going with a 4 shelf Maple rack with one larger bay for my tubed integrated to provide extra ventilation. I figure if I move to SS, a little extra room on top for airflow can't hurt. I don't have the budget for massive gear changes. ohlala: I'm surprised if this is, in fact, the first time you've heard about the advantages of Maple, which seem to be pretty widely accepted at this point. But perhaps you've tried it in your system and found it wanting. I can respect that; certainly, not everything works in every system to everyone's taste. 

stuartk,
Please share your thoughts once you have put your rack to use!

My post has nothing to do with maple, but I do have a Finite Elemente rack.

Vibration isolation is preventing vibration transmission from one source to another, which wood itself does not do. There are different methods, but the one used in all racking systems I know employ a low pass filter. These can be made different ways, but they all resonate at a low frequency, above which vibration transmission becomes progressively inefficient.  Examples include vibraplane, minusk and thorlabs. You can look at a transmissibility curves yourself.  This not to say isolation is always the goal. I don't know your goals.

The wood rack, like all racks is going to resonate at particular frequencies depending on mass, "stiffness", damping and dimensions. You may like it the way it sounds; I don't know. What I know is that is does not isolate, although may be you or falconquest can counter with physics-type reason if I am wrong. Actually I think if it is placed on wood flooring, the acoustic impedance is going to be small vibration will efficiently transfer both ways with little reflection. I hope you enjoy the sound of your rack. They make a big difference.

ohlala;I looked up Finite Elemente and was surprised to discover they offer. among other things, Maple racks, but at prices I can't come close to affording. 

Yes, please tell us how it all works when you get it, I might be interested in getiing one too. Keeping the equipment on the floor works for me from the audiophile perspective but I almost fell over my amp couple of times.