Good ground versus cleared ground - Build 174(2019)
- Good ground versus cleared ground
- Valid from
- Information provider
- BRANZ Limited
- Information type
- BUILD article
- Website, PDF
There’s good ground and then there’s cleared ground. From time to time, the BRANZ helpline receives enquiries asking what the difference is, so here’s a quick recap.
The terms ‘good ground’ and ‘cleared ground level’ are defined in 1.3 Definitions of NZS 3604:2011 Timber-framed buildings:
- Good ground is any soil or rock capable of permanently withstanding an ultimate bearing capacity of 300 kPa.
- Cleared ground level (CGL) is the ground level after completion of site excavation and removal of harmful material but before excavation for foundations.
This article includes:
- What does this mean?
- Determining good ground
- Testing ground bearing capacity
- Testing depths