The depth of your bar cabinet depends on a few considerations:
Storing Bottles: If you plan on storing mostly standard liquor bottles (around 12 inches tall), a depth of 22-24 inches should suffice.
Large Bottles or Barware: If you have taller bottles like magnums or oversized barware, consider a depth of 24-30 inches.
Accessibility: Deeper cabinets might require reaching further back to access items in the rear. If this is a concern, a shallower cabinet with good organization might be better.
Countertop Overhang: If your bar cabinet has a countertop, consider the depth in relation to the overhang for comfortable seating.
Here's a general recommendation:
For a space-saving option with limited storage needs, a 16-20 inch depth might work.
For most home bars with a good variety of liquors and barware, a 22-24 inch depth is a good balance.
If you have a large collection or prioritize extensive storage, consider a 24-30 inch depth cabinet.
Ultimately, the best depth for your bar cabinet depends on your specific needs and preferences. Consider the factors mentioned above to make an informed decision.