Multiple frames
For MCT Brattberg’s steel frames, such as the RGS and RGB, the frame has a standard internal width of 120mm and is available in four height units: 2, 4, 6 and 8, from 100mm in 60mm increments rising to 280mm internal height.
Window combinations can be made by combining different basic sizes into a combination window. This can be done in both width and height. For example, for a wide cable tray, an RGB6+6×3 can be used: a window with 6 openings with height dimension 6 (2 high and 3 wide).
From the four basic sizes, they can be expanded to multiple frames. This can be done either in width (horizontal) or height (vertical). Frames can be installed in any position, so vertical frames can also be mounted horizontally.
Horizontal multiple frames are described by specifying the frame type and size x the number of horizontal openings required.
Vertical multiple frames are described by listing the type and size of the lower frame + the next frame type and size.
List the full vertical frames x the desired number of horizontal repetitions.
