I'm starting to look into getting a 1/2" slab of steel and I've noticed from looking around on the threads that people seem to be suggesting filling as much of the horizontal plane in the oven as possible. Things like "measure the hell out of your oven, make cardboard cutouts, etc to make sure it fits". I'm assuming this doesn't really matter too much other than to maximize the dimensions of your plate? The max my oven can fit is close to 18x24", but we have our home on the market and are planning on renting for a bit so my oven size could change a few times over the next few years. I'm thinking about picking up a 16"x20" 1/2" A36 at a local steel place. Does 16x20 seem like a good size, or should i go smaller to be safe
which brings me to another question, pricing. I keep seeing $40-50 tossed around on here. The local supplier i found wants $90 for 16x20, and the sandblaster down south will charge me $20 (i know this isn't necessary, but i like the idea about getting it sandblasted). 90 seems to be a lot more than most people are paying here?