When installing professional kitchen worktops, getting the sink cutout right is essential for the perfect finish and functionality. We bring decades of expertise to every kitchen worktop installation we conduct, ensuring a flawless fit for every sink.
Here’s how to get it right.
How to choose a replacement sink?
Replacing a kitchen sink sometimes means fitting it into an existing cutout. If you’re using a drop-in (top-mount) sink, the hole may not be that precise, so finding a replacement with similar dimensions is the best technique. Undermount sinks require more accuracy because the countertop edge will be exposed. When replacing any sink, careful measuring is key. Prepare for the fact your existing cutout may need adjusting if needed, depending on the sink type.
How to measure a sink for replacement
Begin by measuring from the outer edges of the existing sink’s lip (this applies whether you have a top-mount or undermount design). Use painter’s tape to protect worktop surfaces and mark the outline clearly. This creates a sink cutout template to follow, allowing you to source a new model. You’ll need one that matches or slightly exceeds the cutout dimensions.
What is the standard kitchen sink cutout size?
Unfortunately, there is no single standard when it comes to worktop cutout sizes. That’s because sink sizes vary so greatly, including their length, width and depth. Typical sink widths (front to back) are between 15 and 24 inches. Lengths (left to right) are usually over 30 inches if they include a drainage board. Sink depths vary. Always verify dimensions for your specific sink model and the cutout required, especially if you’re choosing an undermount design, as they demand more precision.
How do you know if your new sink will fit?
To ensure a proper fit, there should be at least 50mm of surrounding material from the cutout edge to the front, rear and sides of the sink to support structural integrity, especially if you’re working with composite worktops. Always check cabinet dimensions and plumbing access, particularly for Belfast sinks, in which tap access and waste routing matter. If you’re fitting an undermount sink, a flawless edge finish is essential, so you’ll need to plan for silicone sealing and clamping underneath.
Can a worktop installer help with sink cutouts?
Absolutely! Professional installers like the team at Olly London use cutting-edge techniques and modern technology to achieve ultra-accurate sink cutouts. Whether it’s overmount or undermount sinks, we deliver a clean and reliable fit every time. Beyond cutting, we also advise on everything from overhang preferences and structural support to seamless integration with your plumbing. We also conduct precise templating for bespoke materials to ensure beautiful, seamless results.
Need a precise worktop finish? Contact Olly London today
Contact Olly London to hire our professional worktop installers. We cover the South East, installing beautiful kitchen worktops in Dulwich, Ealing and beyond. For a free quote, get in touch today.
