The depth of a countertop varies for the kitchen and the bathroom. The general rule is to choose a practical countertop depth. It should neither be too narrow for the storage nor too wide that space goes to waste. Broader than usual kitchen or bathroom countertops make the area along the wall unreachable and thus of no use at all.
Standard Width of Kitchen Base Cabinet Countertops
The base cabinet countertops are the most functional part of a kitchen. We use this surface for storing appliances, food prep, and other utensils. The depth of a kitchen countertop is usually 24 inches with 1 or 1.5 inches overhang.
Standard Broadness of a Kitchen Island Countertop
The depth of the island highly depends upon the amount of available space. If you have a free zone for walking after putting an island in the kitchen then only you can have it. The standard depth of a kitchen island countertop is also the same 24 inches, but you can increase the overhang up to 4 to 5 inches. Take it up to 10 inches if you want a breakfast bar with the island. Whatever depth of the overhang you decide, make sure there is enough room for moving around in the kitchen for safety purposes as well.
Standard Depth of a Bathroom Countertop
The standard countertop depth for bathroom base cabinets is from 18 inches to 21 inches. The overhang for the bathroom countertop is usually 1.5 inches. The countertop depth directly depends upon the size of the bathroom. If the bathroom’s area is small, then you wouldn’t want anything broader than 18 inches. If you have a spacious bathroom, then you can easily take the countertop breadth up to 20 inches. For a bathroom countertop too, make sure there is no dead space at the back of the counter. Because if you are investing in a costly countertop such as granite, each inch costs money. So, it is better to be intelligent with the choice of the countertop depth.