ISO 2848

ISO 2848 (Building construction – Modular coordination – Principles and rules) is an international standard for the construction industry that describes the aims of modular coordination and gives the rules to be used in establishing the dimensions and positioning of buildings and their components.

[1] Adherence to the standard means that major dimensions such as grid lines on drawings, distances between wall centres or surfaces, widths of shelves and kitchen components are multiples of the basic module.

As dimensions increase, preference is given to lengths which are multiples of 3, 6, 12, 15, 30 and 60 basic modules.

For smaller dimensions, the submodular increments 1⁄4 M and 1⁄2 M are preferred.

The underlying unit of size given in ISO 2848 for modular coordination is the 'basic module'.

Cross section of a wooden joist layer , where "6 M" (or "6 modules") indicates a distance of 600 mm" (from center to center).