Double beams I-BEAM are universal structural elements used in house wall, ceiling and roof structures. The wall of the beams is made of OSB-3 board, and the shelves are made of glued wooden dowels. I-BEAM double beams are precisely dimensioned, strong and light. They do not deform over time like ordinary wooden beams. By using I-BEAM beams, you will reduce "cold bridges", and at the same time, investments and running costs related to building insulation. The beam wall is high, so various engineering systems can be conveniently installed in it. Double (double) beams are much lighter than reinforced concrete or wooden beams , so their installation saves time and requires no additional equipment.