Custom Furniture of bathroom: A Compost Bin That Hides
Custom Furniture in the bathroom can tuck a hidden compost or waste bin right into the vanity, so your counter stays clear and the bin disappears. In an HDB 4-room flat around 90sqm, the bathroom is tight, and a concealed pull-out bin built into the cabinet base keeps things tidy without a freestanding pail in the way.

Why hide the bin inside the vanity
A visible bin in a small bathroom gets in the way and smells up the room. A custom vanity with a pull-out drawer-bin behind a closed front hides the lot. You open the cabinet, slide the bin out, and close it away, no pail sitting on the floor.
If you compost kitchen scraps, the same idea works as a discreet caddy near the bathroom or an adjacent utility wall. The point is the bin lives inside the joinery, not on show.
It also frees the floor. In a 5-room flat near 110sqm you might not care, but in compact baths every centimetre of clear floor helps with cleaning.
Designing Custom Furniture for the concealed compartment
Plan a full-height pull-out at one end of the vanity. A 25 to 30cm wide column fits a standard bin and still leaves room for towels above. Soft-close runners keep it from slamming.
Add a small vent or charcoal filter if you're storing organic waste, so smells don't build. A lined, wipeable base tray catches drips and lifts out for washing.
Put the bin column on the side away from the basin plumbing if you can. That keeps the waste area dry and the pipes accessible for repairs.
Materials that survive a wet room
Marine-grade plywood is the right call near water, it resists swelling where normal board would bubble. Laminate surfaces on the carcass wipe down fast after a steamy shower.
Avoid MDF in the bin zone; once it meets moisture it's done. Solid wood can work for the door front if you like the look, but seal every edge or it'll cup.
Use a non-porous tray liner and a bin with a tight lid. The joinery just frames it; the liner does the real cleaning work.
Cost, timeline and building rules
A custom vanity with a hidden bin column runs roughly S$1,200 to S$3,000. That's a small part of a typical S$30k to S$70k reno for the whole flat.
From measure to install, count on about 6 to 10 weeks. The bathroom usually comes later in a reno sequence, so coordinate with your tiling schedule.
HDB allows vanity carpentry as long as you don't move plumbing without permission or block the vent. In a condo, MCST rules may ask for waterproofing evidence in wet works, so keep your contractor's docs.
Upkeep and resale value
Empty and rinse the liner weekly. Wipe the tray and check the runners monthly so the pull-out stays smooth.
A hidden bin reads as "thoughtful design" to buyers. It won't add a fixed sum to your resale, but it shows the home was planned, not just filled.
Keep the warranty card. If the runner fails in the first year, the defect liability period should cover it, just have the paperwork ready.
Once the bin is out of sight, the bathroom feels bigger than it is. Spend the design effort on the liner and ventilation and the feature will quietly earn its place.
