Gud am Istoryans ask lang ko sa mga foreman ug panday nato diri. For a 40sqm na balay pilay estimated number of pieces of ORDINARY corrugated sheet ma gamit?

Kung 3ftx8ft = no. of pcs?
3ftx10ft = no. of pcs?
3ftx12ft = no. of pcs?

Sa 1cubic meter na sand pila sad average no. of pcs in terms of sack?

Thanks daan sa inyong mga tubag