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NS Canada | If you were to pour a 4 ft retaining wall, which is the proper way when taking into account frost depth?
1- Cut the 4 ft of ground out, pour footer and wall and then add gravel to footer height, concrete pad poured above that
2- Cut the 4 ft of ground out, pour footer and wall but have gravel to footer base height, concrete pad equal to footer height
3- Cut 8 ft of ground out, pour footer the additional 4 ft down so its down below 'new' frost depth on the low side, gravel to footer height, concrete pad back up at depth required
Right now I have the 4 ft cut out and 3 layers of stack blocks set (6ft) on concrete base pad holding back the level ground (not in a hill side, sunk in more like a basement). Perhaps they move with the frost, But I don't tend to notice anything for block movement. Wanting to remove blocks and pour a water tight wall in one area instead. There will eventually be a roof over the low side so frost will be less of an issue on that side then anyway, but not at first)
Edited by Supa Dexta 4/2/2024 10:13
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Small concrete retaining wall
