Belfast Sink Base Units (UK): Sizes, Clearances & Drainer Options Explained
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Few kitchen features make a statement quite like a Belfast sink — deep, durable and unapologetically practical. But getting the base unit and drainer setup right is what separates a good installation from a great one. In this guide, we’ll explain the ideal clearances, compatible cabinet sizes and drainage options so your Belfast sink not only looks the part but works perfectly day-to-day.
Standard Sizes & Cabinet Compatibility
- Typical sink width: 595 mm–795 mm, though extra-wide farmhouse models can exceed 900 mm.
- Base unit width: The golden rule is at least 50 mm wider than the sink. For a 600 mm sink, choose a 650 mm or 700 mm cabinet.
- Depth & clearance: Allow 25–40 mm of clearance behind the sink for tap tails and plumbing access.
- See ready-made examples in our Belfast sink base collection.
Mounting Options & Drainer Solutions
- Undermount Belfast: Creates a sleek join with quartz or granite worktops. Use reinforced support rails beneath.
- Inset Belfast: Traditional fit with a small lip showing over the cabinet front — more forgiving for timber worktops.
- Integrated drainer grooves: Quartz or granite worktops can be router-cut for drainage; timber options need a stainless insert like our Belfast worktop drainer.
Choosing Worktops to Match
- Quartz: Non-porous, ideal for undermount sinks where splashes are common. Learn about benefits in the benefits of quartz worktops.
- Granite: Classic and hard-wearing; needs sealing but handles hot pans easily.
- Solid wood: Beautiful but higher maintenance — oil regularly to prevent water marks.
Tap Placement & Plumbing Tips
- Drill tap holes 40–60 mm from the sink edge to allow for splash clearance.
- Install an isolation valve under the sink for maintenance access.
- Always check the sink’s overflow alignment before cutting worktops.
Design Ideas That Elevate a Belfast Sink
- Contrast finishes: Pair white fireclay with dark quartz and brass taps for heritage style.
- Open shelving beneath: A farmhouse favourite that keeps detergents within reach while showing off craftsmanship.
- Modern twist: Mix a Belfast sink with flat-panel doors and matte-black hardware for a London-loft feel.
Need help confirming cabinet size or drainer options for your space? Send us your sink model and dimensions — our team will recommend the perfect base from our Belfast sink base range.
Frequently Asked Questions
What size cabinet do I need for a Belfast sink?
Choose a base unit at least 50 mm wider than the sink. For example, a 600 mm sink fits best on a 650 mm–700 mm cabinet. Browse ready options in the Belfast sink base collection.
Do Belfast sinks need special plumbing?
They use standard UK waste kits, but you’ll need space for the deeper bowl and should include isolation valves for easy servicing.
Can I fit a Belfast sink with quartz worktops?
Yes—quartz suits undermount Belfast sinks perfectly. Ensure proper support rails beneath and use a cut-in drainer like our Belfast worktop drainer.