Cellar advice

I saw this but for double bins I’d have to do a total rebuild as the bottom structure is only 16” I think. Might be worth the money to redo it all. I like this style the most and I’m worried about the cubbies being the same problem I have now.

What do you mean “cubbies”?

Edit. Nevermind, I got it.

They may be able to use some of the current base materials to extend it out. ie the front trim piece, etc.