My portable version......

I've settled on two pieces of half inch glued & screwed together as a good compromise between weight & stiffness.

48" x 30", rounded corners, and a 10" x 16" cutout.

Indoor/outdoor carpet on the top, folded under & stapled.

Folding banquet legs from Menards on the bottom. Off set so the lay flat.

Weight is 37 pounds.

Used to be under $50.00 to build at the old prices.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]