I just use one of those anti-static wrist ties. However, I prefer to build on tile or some other non-carpet surface if I can help it.
As an aside, a buddy of mine has an extended warranty on his laptop, it was coming towards the end and if he had one more repair they would junk it out and replace it under the terms. I tried everything with his RAM, balloons, carpet, packing peanuts. The thing still ran memtest all night with no errors. Go figure
Wood, cardboard and anti-static motherboard bags are all good to use as a safe platform.
From my experience, static is a myth that started a long time ago. A lot of veteran computer builders I know have told me that normal day to day static from the air or even from carpet will not be enough to destroy a part.
What you need to watch out for is putting the motherboard on something that will conduct electricity if you plan to build it outside of a case. sometimes you will short something and yes that can start fires lol.
Alot of VETERAN computer builders are full of shit then, and not ment to be rude. I have seen static fry aircraft parts that are built to withstand the rough landings and this is that normal day static from air or even carpet.
raises hand...OK everyone with a EE degree in this thread raise their hand !
OK then, everyone who has worked in electronics fabrication/manufacturing industry in this thread raise their hand !
(slapping machines together on a workbench does NOT count.)
To the original poster, wood without any finish is no problem. I would think some finishes like polyurethane are not the best to put the board on, but I am not sure how much of a concern it is. Your bed is almost certainly not a good idea.
To others, generally anti-static bags are not conductive. The kind I refer to as pink-poly do not form a Faraday cage and only prevent a buildup static charge. The type which do form a Faraday cage come in several varieties. They usually have a metalized film or mesh in between layers of anti-static plastic. If you puncture the bag in any way there is potential for a short circuit. There are others but these are the ones we commonly run across.
The handling recommendations I've seen most on this forum work just fine. Are you still at risk? Of course and depending on your liability you need extreme measures. Aerospace and medical companies come to mind. A professional PC builder I should at least have a static mat and wrist straps for when working with something outside the case. If it's in the case, just touching the metal case is sufficient. If you are unsure about doing this connect your wrist strap to the case. Leaving it plugged in to a switched off power supply couldn't hurt. Just make sure it's really off so there is no power to the board.
Hmmm pc whiz you may be but wtf? "polyurethane" finish is conductive? I think not.....it is a plastic polymer....since when is plastic a conducter....far as I know it is a insulator.