- The side beam has the function of a support attachment, resulting in greatly improved workability. In addtlon, there is no need for an attachment, so stock control is performed smoothly.
- A wooden stiffener is inserted into the upper part of the beam to ensure plywood panel to be fixed to it with nails.
- A wedge method of span adjustment is used, permitting fine adjustment. Also, disassembly work can be performed with a single touch.
- The beam for 2,500mm use weighs 19.0 kg. Thus, both strength and lightness are realiized.
