Well, since I baked my first ciabatta w/o parchment, with decent success but the second loaf stuck to the baking sheet and slightly malformed, I went looking at my local Cash & Carry where I get my flour for some parchment. All they had was 'pan liners' that are the full size steam table pan size. Sorry, I didn't look at the measurements but it's about 18-20" by 10-12" by wild guess, and a 1000 sheets for less than $34. I don't know about you but I don't really have a lot of need for 1000 sheets in this lifetime; at least until I retire and open a bakery... So does someone have another source at a reasonable price or do I need to go into the parchment supply business and sell small quantities to you folks?