Basic strength test for a 25mm x 48mm length of "metalclad" (metal clad is my invention of a door side off cut of grp skin upv core glued & screwed inside drywall lining steel'

This sample had grp on 3 sides & drywall channel on 3 sides . Apollo adhesives glue was used with slant drilled drywall screws (42mm.) As it was the dimple sided c-stud, I think this did not glue well. Flat sided stell would glue better imo

I weigh 16 stone (101kg) . Yes, the beam survived!

We will be doing more elaborate strength  / destruction tests in the new yr with thicker & longer samples.