I believe the only difference is price and size. They both work out to about the same price if I'm not mistaken (if you were to compare the same square footage). The only difference I could find is the look (18" square instead of 12").
The president of the company is all over this forum (Racedeck1) and the price cannot be beat. Mention you are on this forum and you get a discount.
Easy as that!
Do a search using 'Racedeck' and you will find tons of info and examples.
Hi
The only real difference is the size of the modules. With the RaceDeck XL you have less seams per foot as well.
And yes, be sure to call and ask for Jenn for GJ discounts.