I forgot my password.
Don't have an account?
pls tell me 1)120Lgx75Wx 6Thkx 21 Qty & 2) 40 lgx 80 w x 6 thk x 4 Qty. both r same thk how to calculate toatl size & wt.
Volume x density.
LXWXHXQty. Then look here.