.

I haven't built a board myself yet, so I can't help you with material choices etc.

Foldable legs seem very difficult to make and will add a lot of weight to the board (thus making it more cumbersome, etc). If you want it to stand by itself, I'd just put some real legs under it on the spot. You can also make very broad supports (we used to make them out of big plastic boxes until we cleared a proper table to lay our gaming mat on) and just rest it on top of that.

For size, 6'x4' seems standard, though I (addicted to huge Napoleonic and WW2 battles as I am) would make it larger. Remember, you can allways use a non-crossable modular river to make it smaller if you want.

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"... Telchar wrought it in the deeps of time."
-On Andùril, The Lord of the Rings

1/2 inch construction grade. http://woodworking.about.com/od/plywood ... Grades.htm

4'X6'

see links
http://www.homedepot.com/webapp/wcs/sto ... -100048820
You may want to frame the plywood See links
http://woodworking.about.com/od/shopequ ... able_4.htm
Note a shop table needs to be way stronger than a gaming board but the principle is the same.

For the kitchen table you might want to get a two inch 4'X8' of medium density Styrofoam and paint it. It will be much lighter than plywood and cost about the same as mid grade plywood. You could even cut it in half and hinge it with duct tape. I made a ten 4'X6' tables like that for a convention. They lasted a few years but I cut them up and started using the folding legs in the first link with plywood tables instead.

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"the same as a duck you must be made of wood"

My table is 4' x 6' x 1/2" MDF cut in half to 2x6. A dining table can support it without additional legs and it can still fit in my Hyundai Accent.

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http://drinkingwotr.blogspot.com/ - Links to my CrAzY House Rules, Games and 'poor man's' terrain.

The disadvantage of MDF is it won't hold nails or wood screws for that mater so you won't be able to attach the hardware that comes with the folding legs I recommended. The two 2'X6' as sections has the advantage of fitting the small car. So would three 2'X4' sections.

One of my portable tables at my new house. 10 will fit in my pick up truck

An old photo of the game table at my old house. It is a box built from two 1/2" 4'X6 plywood sheets and two 2"X6" X12"s. The top sheet was cut into three 2'X4' sections so that I could use the inside of the box for storage. It rest on metal map files.
I don't build permanent boards for my self any more. They are just to hard to store and transport. I use table covers and modular terrain.

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"the same as a duck you must be made of wood"

Awesome terrain pieces on that board! ;O

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See more of my work?
http://www.youtube.com/user/whgamingnl?feature=mhee

Thanks

I use the foot lockers to transport the terrain when I play at the Hobby Shop or Treefort.

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"the same as a duck you must be made of wood"