Principles of quotation

In France, the principles of dimensioning construction drawings are standardized. Dimensions clearly define a component, structure or construction. They are expressed in SI units and positioned by dimension and attachment lines.

Marker lines can also link a drawing element to a piece of information.

Circumferences, chords and arcs, angles and sectors and inclinations all require special dimensioning graphics.

The dimension value is positioned for easy reading, and can be quoted in series, parallel, Cartesian or polar coordinates.

Levels and bare levels are subject to a specific rating system.