You cannot compare these, as one measures weight and the other measures distance.
352 yards
16 ft x 22 ft = 352 ft2
How many tons of lime stone is needed to build a wall 6 ft high 936 sq ft
11' x 32' = 352 sq ft
9 tons
4 ft and 90 pounds to 30 ft and 10 tons
Sixteen Tons
We can't determine the amount of tons of stone to fill up that area or volume! Tons measure mass while ft² measures area. Therefore, these units are incompatible to each other.
352 lb equals 352 lb.
14 Metric Tons - Standard Filling
1000 ton
23 ton wheat flour in one 20 ft container