One of the feet included with an ottoman I purchased shattered to pieces when I was screwing it into the ottoman. Replacements seem impossible to find but this foot matches both the ottoman and sectional couch in my home, so hopefully it can be of use to you, too.

Side lengths are 160mm x 160mm x 225 mm and the foot is 70mm tall.

I used the default sidewall setting in Creality Print and it feels super strong, but feel free to thicken up the walls if you feel you need extra strength!