This MMBS design template is for the Concrete wall with 2 openings per storey panel. It has 6 pages one for each panel type e.g. 1 Storey, 2 storeys etc.
Top opening Size B - 64mm x 27.7mm - 2.520" x 1.091"
Bottom opening Size D - 64mm x 11.85mm - 2.520" x 0.467"
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Click here for instructions on how to use the templates.