Wolf has 22-5/8 deep models, called by Wolf "hood liners." Find the Wolf Design Guide by search and download it for more information.

ModernAire will likely build anything rational that you want. They may have standard designs that would meet your needs.

You can buy insert liners which are metal boxes that increase the capture area of the exhaust mechanism.

"But many are too shallow. I want 18”-22” deep."

build.com lists 223 18-22" deep, insert range hoods of varying widths from 21 manufacturers on its website.

Thanks you guys!