Ready-mixG20
G20
A light structural or general-purpose class, used when the drawing or the site practice names G20.
Often requested for
- Simple domestic ground work
- Blinding where a higher class than G15 is specified
- Paths and pads named as G20 by the designer
The number in a grade such as G30 is commonly treated as the strength class in N/mm². That is industry naming, not a T3 test result. Your engineer specifies the grade. T3 confirms what can be supplied when quoting. This page is not an engineering design.