550mm semi-recessed basins give you a slightly wider wash area while still working neatly with fitted bathroom furniture. This size suits en-suites, family bathrooms and vanity runs where everyday comfort matters, but the basin still needs to sit cleanly within the layout. Designed to fit partly into a worktop or vanity unit, a 550mm semi-recessed bathroom basin offers a tidy built-in look with useful storage space below.
TAILS’ FURNITURE FIT
Gain a wider bowl on shallower furniture
A 550mm wide semi-recessed basin provides a generous washing area while sitting partly within compatible bathroom furniture. Its projecting front allows the bowl to extend beyond the cabinet, making this size useful where a full-depth vanity would take up more floor space than the room allows.
Is a 550mm Semi-Recessed Basin Right for Your Furniture?
Compare cabinet depth, basin projection and fitted-furniture compatibility
Your cabinets have a shallower projection
A 550mm basin for fitted bathroom furniture can provide comfortable bowl space without requiring the cabinet to match its full front-to-back depth. The projecting ceramic uses room beyond the cabinet face while preserving more circulation space below.
You want more presence than a compact basin
At approximately 550mm wide, the basin can balance a fitted furniture run more convincingly than a smaller cloakroom model. It suits main bathrooms where the wash area should feel substantial without moving to a much wider furniture-mounted basin.
You are buying the furniture together
Purchasing a compatible 550mm semi-inset basin and cabinet as part of the same planned scheme makes the cut-out, support and projection easier to confirm. This reduces the risk of selecting furniture that cannot accommodate the bowl correctly.
You want a flush cabinet frontage
A 550mm semi-recessed bathroom basin is designed to extend beyond the furniture face. An inset or integrated furniture basin may be more suitable when you want the bowl, cabinet and worktop to remain within one straighter front line.
The room cannot take the projection
Although the cabinet may be relatively shallow, the basin still projects into the room. A smaller semi-recessed washbasin could leave better clearance where a toilet, doorway or opposite wall sits close to the fitted furniture run.
Your existing unit lacks the right support
A nominally similar cabinet will not automatically accept every 550mm furniture-mounted semi-recessed basin. The cut-out, internal bracing, worktop depth and plumbing space must suit the exact product rather than its width alone.
550mm Semi-Recessed Basin FAQs
Width, cabinet sizing and forward projection explained
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Is a 550mm semi-recessed basin exactly 550mm wide?
The stated size may be nominal, so check the technical drawing for the precise overall width. Manufacturing tolerances, curved edges and fitting allowances can all matter when the basin sits between adjoining fitted bathroom furniture.
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What cabinet size suits a 550mm basin?
There is no universal cabinet width or depth for every 550mm semi-recessed washbasin. Use the manufacturer’s recommended furniture dimensions and cut-out information rather than assuming any 550mm bathroom unit will provide the correct support.
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How far does a semi-recessed basin project?
Projection varies by model and depends on both the basin depth and the finished cabinet depth. Before purchase, compare these measurements to see how far the bowl will extend beyond the fitted furniture into the room.
DESIGNER’S NOTE
Centre the 550mm washbasin within the cabinet run and keep adjoining worktop edges restrained so its forward-projecting bowl looks intentional rather than visually oversized.