No damage would be expected. That is exactly the way it is suggested to store plastic boats to reduce deformation. I expect your S&G is less "plastic", and therefore less prone to creep problems.

: Hi
: Due to space constraints I store my 45 lbs S&G kayak in the garage by placing
: kayak on it's side supported by Malone wall racks. There are 2 racks, each
: supporting the kayak at appr. 1/3 from the bow and stern.
: Since the kayak spends most of it's life in this position, am I crazy by
: contemplating that the kayak will eventually warp from being stored this
: way ?
: Should I consider switching the sides kayak rests on on a regular basis ?
: Merry Christmas
: -Tom