New 9pc Wood Interlock Heavy Duty Foam Floor Puzzle Work Gym Mat Brown If I still used a tent, I'd buy these in a heartbeat. Each square is a little less than a foot and you get 9 in a pack for $22 on ebay (they are in other places. Do a search for "foam wood mats" to see prices at Target, Overstock, Amazon, ect). My guess would be the average SCA camper would need about 4 packs, at least. But a wood look floor that is super easy to clean? Priceless!