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Most kitchen sinks fall between 24 and 36 inches wide. Single-bowl models measure approximately 30 inches, while double-bowl options run 33 to 36 inches. Depth is eight to 10 inches, and the front-to-back distance is 22 inches.Sticking to these standards makes it easier to drop a new basin into existing cabinetry and countertop cutouts, saving you time and money on modifications.

A straightforward kitchen sink swap takes a pro an average of two hours if the existing plumbing lines up. Pedestal, wall-mount, or bathroom installs can stretch longer because the mounting has to be spot-on. Tackling the job yourself? Budget four to six hours so you’re not rushed—especially if you hit an unexpected snag.

You can often pop in a new sink without ordering a whole new countertop, as long as the basin matches the current cutout. Go for a smaller sink and you’ll need a pro to modify the counter; go bigger and they’ll enlarge the opening with specialized tools. Either way, precise measuring up front keeps the install seamless and protects your counters.

Yes—if the farmhouse sink you pick matches the current opening, it can slide right into your existing counter. If the dimensions are even slightly off, your contractor will need to trim or reinforce the countertop for a flush, stable fit. Precise measurements up front spare you extra labor and help the finished look stay true to your kitchen’s style.

Pipe life span comes down to material. Copper and cast iron can hit the century mark, galvanized steel and brass last 50 years, and PVC holds up for 25 to 40 years. Keep an eye out for corrosion or leaks—spotting problems early lets you replace sections before they cause expensive water damage.