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
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.
Sixteen Tons
1000 ton
14 Metric Tons - Standard Filling
23 ton wheat flour in one 20 ft container
352 lb equals 352 lb.