HO Concrete wall panel 4 storey - 2 openings per storey

Opening size B - 64mm x 27.7mm - 2.520" x 1.091"

Opening size D - 64mm x 11.85mm - 2.520" x 04.67"

MMBS instructions and panel template - FREE download 

MMBS-LP001-6 - Concrete wall 2 opening 1 to 6 storeys - MMBS panel template

MMBS panel template catalogue

For more details about the Modular Model Building System - CLICK HERE