The Berg Selector B-Model is an all-wooden cabinet 24” wide. The trays are 18-3/8” inside dimension. It will accommodate both wide and narrow trays. It will hold 18 wide trays or 30 narrow trays, or combinations of 9 wide and 15 narrow or 12 wide and 10 narrow.

Spacing is 4 empty pegs between wide trays, 3 empty pegs between a wide and a narrow tray, and 2 empty pegs between narrow trays.