Browse Forums Landscape & Garden Design 1 Mar 30, 2012 8:46 pm I need to build two tiered block retaining walls. Both will be 1 m and stepping down to 600mm. The question i have is that do I need concrete footings or compacted crushed rock footing will do the job. The soil type is hard clay. Re: Block retaining wall 2Mar 30, 2012 10:18 pm Compacted crushed rock should be fine. Most block makers provide downloadable design and installation guides. For example Boral products are at this link http://www.boral.com.au/retainingwalls/ ... gwalls.asp The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Block retaining wall 3Mar 31, 2012 7:07 am bashworth Compacted crushed rock should be fine. Most block makers provide downloadable design and installation guides. For example Boral products are at this link http://www.boral.com.au/retainingwalls/ ... gwalls.asp Thanks. If I go with a concrete footing will it be stronger than crushed rock one. Re: Block retaining wall 4Mar 31, 2012 9:15 am winner bashworth If I go with a concrete footing will it be stronger than crushed rock one. Not really unless you put reinforcement steel such as trench mesh in. With ground movement concrete will just crack and move. The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. there is a standard besser block wall pdf somewhere online with footing sizes, also have a look at dincel. 1 2926 Thank you again Simeon.. I will call my certifier for that. Have a good day 4 5197 Thanks for the insights, that makes perfect sense, and yeah, I will be leaning on the experience of the excavator operator entirely. 6 16159 |