The Aliflor bed is 12x12 x 10ft. I blocked off a off about 6 running inches. So it is about 9 cu ft. I put 9 cu ft of Aliflor in it. It sits about 6" over the float bed. The float bed is 16ft long and about 24" wide. When I have the Vertigro hanging you will be able to see the size better. Looks good doesn't it.