In addition to the other advice, it is also worth noting that once several strips are stapled to the forms, the whole structure becomes quite rigid and can take a fair amount of pushing and pulling without a problem. So the further you get in the process, the less of problem it will be.

: I have been looking for a shop to build a kayak for a long time.
: Now I think I have found one. There's just one drawback: I have
: to store the kayak outside during the daytime, when I´m not
: building. My plan is to put it in a large wooden box (to protect
: it from weather and vandalism) with casters under it, so i´m
: able to move it around during the build.
: But how do I make a strongback that is stable enough to be moved?
: I´m especially worried about the glue joints between the
: strips.
: I have see a few descriptions for mobile stands, but I don´t know
: how they will work when the kayak must be moved daily.
: Any ideas are welcome.

: Palle Dam, Denmark