Quick answer: Aluminium is one of the best bathroom vanity cabinet materials for Singapore because it is waterproof, rust-resistant and never swells or grows mould. Plywood and MDF absorb moisture and can swell and peel in a bathroom. Aluminium costs more upfront but needs far less upkeep.
Why Bathrooms Are Hard on Cabinets
Bathroom cabinets face constant humidity, splashes, hot showers and cleaning products. Wood-based boards slowly absorb moisture through cut edges and drilled holes, leading to swelling, peeling laminate and mould.
Material Comparison
| Feature | Aluminium vanity | Plywood / MDF vanity |
|---|---|---|
| Water resistance | 100% waterproof | Absorbs moisture, swells |
| Mould | Does not feed mould growth | Damp wood can grow mould |
| Rust | Aluminium does not rust | Not applicable, but hardware may corrode |
| Termites | Termite-proof | Vulnerable |
| Maintenance | Wipe clean | Needs careful sealing and care |
What to Look For in a Vanity Cabinet
- Waterproof carcass and doors, not only a waterproof finish.
- Corrosion-resistant hardware and good ventilation.
- A well-sealed edge where the cabinet meets the countertop and wall.
- Storage sized to your bathroom and plumbing layout.
See our bathroom aluminium cabinets, and learn why aluminium wins on moisture in aluminium vs plywood cabinets. For wardrobes, read aluminium vs wood wardrobes.
Also see: bathroom vanity cabinet prices.
Frequently Asked Questions
Aluminium is a strong choice because it is waterproof, does not rust and does not swell or grow mould in humid bathrooms.
They can, if sealed well, but moisture often damages edges and laminate over time.
No. Aluminium forms a protective oxide layer and does not rust like steel.
No. A damp cloth and mild soap is usually enough.