Yes the seal bar is 11" so you have 1/2" on each side to seal, I bought oversized bags 10"x16" because if you are sealing something large like a rib roast, you can fit more than 13" of bag in the chamber since it is going up and over the roast, for everything else I simply trim off the extra length (If you are super conservative you could technically cut the 16" long bags in half and seal one end of the bag that has opening on each and and get 2 10"x8" bags... I haven't done that yet) Price wise the extra few inches didn't increase the overall price much.
On a side note I like the longer bags because I can roll the top down inside out (you can see Grant do this in the videos) but I actually do it twice so the sealing edge is really tucked up inside itself if that makes sense, that way there is no chance to get it contaminated or wet and hence no chance of sealing problems. If that is unclear I can take some pictures.
@Seijoed As a hunter and the ability to vac seal in major bulk (like butchering a cow with my neighbor and freezing everything) the 215 was just too good to pass up at that price.
How often do you change the oil?
It says my VP215C is 84 pounds, it sure felt much heavier than that....
I love my chamber vac as much as my Polyscience Professional Chef, the ability to do liquids is really amazing and you will wonder how you ever had anything less. I have done watermelon in it's own juice, soups, even water just to see what it will do. The 215 is the same as the 210 in terms of size, it just has an upgraded pump as it's meant for a professional kitchen. If you keep up on oil maintenance I am sure either one will last for many many years as the quality is very high. I know on my model the 215 the lid opens by itself on 2 very beefy hinge assemblies that also trigger the vaccum when it is shut, I am not sure about the lower model.
Lastly Qualitymatters.com was where I scored mine for essentially half of the MSRP and they threw in free shipping (over 100 dollar value) as well as free shipping on any 3 mil bags (another 30 dollar ish value) I ordered at time of chamber vac purchase. It was a splurge but in the long run it was well worth it as I forsee this lasting decades it's that well built. I am not affiliated with that website but they had the lowest price and their service was great, and the shipping which is overweight and oversized was extremely fast like 3 days from order to delivery. Even if you go with a lesser model I would check them out as the free shipping on vac and bags could be upwards of 100 dollars in savings.