This type of wood cement formwork blocks without insulation is used for the construction of internal load-bearing walls. They have thicknesses ranging from 20-25-30-44 cm, maintaining the concrete cast thickness of 15 cm, in line with current technical regulations (NTC 2018). This type of block is standard and therefore ready for delivery. In the range there is also the HB 44/15-2 block with a total thickness of 44 cm for the partition walls between apartments. With this particular product, with a single laying operation, two load-bearing walls are obtained. The block allows the separation of the horizontal structures and prevents the transmission of noise through the walls.