Refer to the diagram; How much concrete will be requred if the planter shown is 5′ tall. The longest wall is 6″ thick all other walls are 4″ thick. Ad for a 6% waste

Refer to the diagram; How much concrete will be requred if the planter shown is 5′ tall. The longest wall is 6″ thick all other walls are 4″ thick. Ad for a 6% waste