Choose mirror-cabinet depth by two measurements: how far the cabinet projects from the wall, and how much usable space there is on its shelves. A cabinet can hide everyday toiletries beautifully without needing to hold every spare bottle in the bathroom. The right depth keeps those essentials within reach while leaving the basin comfortable to use.
In our current range, the narrower illuminated cabinet is 13 cm deep overall. The 50 × 66 cm walnut-effect cabinet is 14 cm deep overall, with approximately 10.7 cm of internal depth. The wider dual-speaker cabinet has a 12 cm cabinet body and a separate 2.3 cm mirrored-door measurement in its drawing. These are different measurements, so compare like with like.
Compare three real cabinet layouts
50 × 70 cm frontlit Bluetooth mirror cabinet — £269. Its 13 cm overall depth is useful when checking the projection above a single basin. Front lighting, anti-fog, Bluetooth and concealed shelves combine a clearer mirror area with daily storage. The 60 × 70 cm option is a separate, currently unavailable size.
80 × 70 cm dual-speaker LED cabinet — £369. The dimension drawing separates the 12 cm-deep body from the 2.3 cm front-door section. Inside, the main storage area measures about 71 cm wide × 62 cm high, with 10 cm-deep shelves. Two mirrored doors and adjustable shelves suit a broader vanity.
50 × 66 cm walnut-effect mirror cabinet — £169. Its overall depth is 14 cm, made up of a 12 cm body and 2 cm door. The internal space is approximately 45 × 63 × 10.7 cm. A sensor-equipped battery light illuminates the cupboard interior; this is different from front illumination or a mirror demister.
Prices and the linked in-stock options were checked on 27 October 2026. Any checkout promotion is applied separately.
Test the projection at your basin
Measure from the finished tiled wall, not an unfinished wall behind it. Check the basin projection, tap position and where your face naturally sits when washing or shaving. A simple cardboard side-profile mock-up can make the depth easier to judge before ordering.
Look from the doorway as well as straight on. A cabinet that feels balanced above a deep vanity may look more prominent over a shallow cloakroom basin. The aim is useful storage with an easy reflection, not the greatest possible volume on the wall.
Measure the things you actually want to store
Place your daily skincare, toothpaste, contact-lens supplies and grooming items together. Compare their depth and height with the usable shelves. Adjustable shelf positions can make more difference than an extra centimetre of outside depth when your bottles vary in height.
Keep bulky refills and spare toiletries in drawers or another cupboard. A mirror cabinet works especially well for the things you reach for at the basin, leaving the worktop calmer and easier to wipe clean. Compare a mirrored cabinet with open shelving if you are still choosing the storage approach.
Allow for doors and neighbouring fittings
Mark the full width and height on the wall, then check how each door will open beside walls, shower screens, shelves and lights. A wide single door and two smaller doors need different clearance. Do not assume closed-cabinet depth tells you everything about the space needed in use.
Read how to choose mirror-cabinet size and our mirror-clearance guide alongside the product dimension drawing. Use product dimensions for fitting, rather than the shipping-carton size.
When a flat mirror is the better purchase
If your vanity already has good drawers, a flat illuminated mirror can leave more space above the basin while adding a shape or lighting effect you love. Browse bathroom mirrors with lights or the LED bathroom mirror range for this route.
For a cabinet, match the wall supports to the product and its intended contents, and arrange any fixed electrical work through a registered electrician. Electrical Safety First’s bathroom guidance and Approved Document P for England provide relevant installation context.
Explore bathroom mirror cabinets to compare the three storage styles, or visit LED Mirror World for a wider choice. Choose the cabinet that makes the daily routine tidier and more comfortable, with space for the products you really use.
Enjoy free UK delivery, a 3-year warranty and free replacement if your mirror arrives damaged.