Had a sub pour a couple of decorative slabs today. 1 was straight sided (10 x 24) and the other was shaped like an egg/pear/water drop. (about 12 x 20) & definitely not round with NO straight side (s).
Point being, they missed the mud estimate by a yard. Damned near wound up cold jointed...would of required tear out.....both were 4" deep "graded" base. Will need to pour some more weird shaped slabs here.
? is how to calc a perimeter length by 4" deep and get cubic yards for future pours?
Dan