No issues with a jack. Not sure what the weight limit of MotoFloor is, but RaceDeck is something like 25000 pounds.

Last time I used a jack, it sat crooked and most of the weight was on one wheel. It left a dimple, but it was gone in about 5 minutes.

If you email Snaplock (www.snaplock.com), I'm sure they'll send you the MotoFloor specs.

Apparently, this stuff is pretty impervious, not sure about "liquid hot magma" though. Lots of talk on garagejournal.com about how much this stuff can take. The CEO posts in the flooring section as well, so he'll address any questions himself.

I have one of these, its about 10,000 btu as well. Self evaporating, timer, and portable. Just connect the hose to a window adapter and your good. It's for my alarm system (my 2 dogs) and also keeps the cars cool. Today I had a Lift Master side jack garage opener installed and raised the garage door. Next item to do is order a 4 post lift. :D

http://forums.pelicanparts.com/uploa...1217555516.jpg