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AdamG
Retaining Wall
AdamG

I excavated a large section of my concrete basement floor to replace some plumbing. The resulting hole is roughly five feet square, and three feet deep. It is next to one of the foundation walls. About two feet of the dirt below the footing is visible. I would like to keep this "hole" accessible for future renovations. What is the best way to go about building a retaining wall (for the visible dirt below the footing)? Would you recommend a cinder block for the job? If so, would 8x12x4" blocks work, or should I go with the standard 8x12x12 blocks? Or, should I just hire a mason to form and pour something? Thank you!

HoustonRemodeler
Re: Retaining Wall
HoustonRemodeler

I'm not sure any of that will be structurally sound. Check with an engineer first.

Or fill it with sand, cover the top few inches with ceement and it will be easy digging later.

dj1
Re: Retaining Wall
dj1

How did you determine that you want to build a retaining wall?

BTW, for a foundation this deep, concrete wall will be better than cinder blocks - but you must get plans from an engineer for that, then have the plans checked and approved by the building department.

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