XblocPlus storage
Xbloc is typically stored in 2 layers, if the stability of the subsoil allows for it. For very small blocks (0.75m3 and 1m3) occasionally storage is in 3 layers.
XblocPlus units are lower and are typically stored in 3 layers, but depending on the subsoil storage can go up as high as 6 layers.
A pdf describing the required area for storage of Xbloc and XblocPlus can be found here: