Beginner with a big foot, 14

Hi,
I'm a beginning snowboarder, have road a few times in Michigan and really like it. Looking to get my own board.
I wear a size 14 boot (15 in regular shoes) and I found a good pair of boots I like that fit well, so I need a wide board.
I've been to the local snowboard shop here and I've narrowed it down to a couple boards.
Rome Manual and Ride Fleetwood. Booth seem to be good entry level boards.
I'm a little worried that 265cm won't be wide enough.
I also know Burton makes extenders that raise your feet up some, I haven't heard anything positive or negative about those yet though.

Any suggestions.
Thanks.

OK, went to the board shop and got a Rome Manual. Had more flex than the Fleetwood which should help me learn to transition better.
Anyway, I'm pretty happy and saved a bunch since it was last year's model.

Now if only I could cut my toes off and still ride and I could get a regular board like everyone else.

There are a few options to get into a narrower deck. Very aggressive turning on harder snow may negate some of the binding riser benefits of toe and heel drag. Binding placement, smaller boots, and shaved boots will allow a less wide snowboard.

At least 1 company has boots that are shorter from toe to heel. You most likely will want to make sure these are warm enough for you. Shaving the edge of the boot angled to the edge of the snowboard can be a warranty issue. I do this to my boots, a very fine art to not bevel to much of the boot to avoid shoe gooping the hole at minimum. The angle of bindings can reduce toe and heel overhang also. Both bindings angled forward for higher speed carving type riders, duck for freestyler types tend to work for most.