Because of your reply, i looked at this again, so perhaps not as high as 10m, but still, balancing atop a ladder and pulling down a 2ft square of (wood?) from above your head would be incredibly difficult, whats stopping it all falling down when you have taken a few out? Edit, just noticed it says tin, a tin ceiling?? A 2ft x 2ft piece of anything is gonna be heavy when its above your head. If this post is a joke, it’s not funny, if its serious, then it’s insane.