Happy to see the separate topic. Screens are the one thing I have not changed in a long time in my never-ending endeavors.
Where are you in Canada? I have a 16" aluminum screen that is sparkling and sits motionless in my overhead space because it is too large for my racks. It weighs a whopping 6 oz. I find the Post Office to be cheaper when something weighs under 2 lbs and have a UPS next store as well. I'd be curious if the shipping cost is any more reasonable and would be happy to check for you.
Even with stones, tiles, etc. in gas ovens, it reduces the mess, simplifies handling, and allows you to work real fast.
Here's a string under N.Y. Pizza dough between Pete-zza and I, with suggestions for screen usage. Pictures are below: http://www.pizzamaking.com/yabbse/index.php?board=5;action=display;threadid=389;start=msg4518#msg4518This is a picture of my 14" screen, which is the same as the 16" screen.
I never wash it with soap, never use corn meal (it would fall through), never pre-heat it, and it never burns. When done, I wipe it off and put it away, no mess.
Since there is no lip to prevent cooking, feel comfortable to stretch it to the outer ring.
This puppy is light, and you don't need to worry about fitting it on a circle or messing with vacuums, reducing time in oven and potential burns to you.
It makes for nice pizza; here's a link showing an example from bag to serving pan: http://www.pizzamaking.com/yabbse/index.php?board=5;action=display;threadid=389;start=msg4446#msg4446