This is a longer versions of the roller shutter stops we have in use here in Belgium as our shutters were frequently pulled into the enclosure.

Print with weather/UV resistant plastic like NYLON/ASA/PETG

I set minimum 3 perimeters and 40% infill

Can be printed in 2 directions. (weaker on screw holes or weak on stopper)

Let me know if you need a customized version