Just a quick question for you. Well hopefully.
A contractor has installed a retaining wall with colorbond fence on top. In the contract he stipulated that he would use 65mm x 65mm x 1.6mm powder coated steel posts.
He has, by mistake, installed, 76mm x 38mm x 1.6mm powder coated steel posts.
The whole fence is now leaning over and has failed. Now given that these posts are cemented into the sandy soiled ground, which of the posts would be stronger?
The posts have been installed standing up. I.E. the 76mm has the fence attached to it and the 38mm is facing each of the gardens.
Any help gratefully received.