Wet kitchens built for Sarawak moisture.
A Sarawak wet kitchen lives with standing water, steam, daily scrubbing and monsoon humidity. ELS specifies the moisture-zone material, hood ducting, drainage falls and ventilation before ALUMAX produces a single cabinet — so the hood actually clears steam, and water runs to the trap instead of pooling under the carcass.
Where this wet kitchen specification earns its fee in Sarawak conditions.
How to decide before you build
Wet kitchens fail on material and water-path decisions made before quotation — not on finish. Use these rules first.
| If | Then |
|---|---|
| The cabinet base sits in a wet zone — wet-kitchen base, sink run, laundry | Specify ACP or honeycomb aluminium, not unprotected board; under the kitchen sink, protected P6 only with ALUMAX's listed protections and where ALUMAX's site measurement finds P6 suitable. |
| A supplier calls a moisture-resistant board "waterproof" | Treat it as a warning. "Moisture-resistant" is not waterproof — and it is a different axis from the board's E1/E0/ENF emission grade, which is about air quality, not water. |
| Only the dry-kitchen cabinetry is exposed to water | Moisture-resistant board can be specified there — but the wet base still needs aluminium; under the kitchen sink, protected P6 only with ALUMAX's listed protections and where ALUMAX's site measurement finds P6 suitable. Choose by zone, not budget. |
| The hood vents into the ceiling void or back into the room | Re-route the ducting to outside air with the shortest run and minimal bends, sized to the hood. |
| Floor water pools instead of reaching the trap | Set drainage falls toward the floor trap and lift the cabinet on a sealed, water-tolerant plinth. |
| The wet kitchen is enclosed with weak air movement | Plan cross-ventilation or mechanical extract so humidity and heat clear instead of sitting on surfaces. |
Aluminium where it stays wet.
The single decision that most often saves a Sarawak wet kitchen: match the material to the water it lives in, not to the price line.
The three paths water takes out.
A wet kitchen is a water-management problem before it is a cabinet problem. ELS coordinates the three exits before trades start.
The site decides these, not you.
Climate and site conditions that quietly modify the design — checkable actions, confirmed against your home after the survey.
Figures are planning guidance, not warranties. Real performance depends on the product, its installation and the site's exposure; the product datasheet and site measurement confirm it.
What the wet kitchen specification covers
ELS specifies the wet kitchen, recommends the order of the work and checks the hand-offs set in the commissioned scope. ALUMAX supplies and installs the products. Some scope is ALUMAX-direct; some is multi-trade on a project basis.
- Moisture-zone material schedule — aluminium for wet, board for dry
- Wet-base, sink-run and worktop cabinet requirements for ALUMAX
- Hood ducting route, sizing and outside-air discharge intent
- Drainage fall and floor-trap coordination with the cabinet layout
- Ventilation / humidity-clearance direction for the room
- Corrosion-tolerant hardware and sealed-plinth detailing
- QC checks before, during and on handover of the wet zone
- Waterproofing / tanking works — ELS project basis, multi-trade
- Floor drainage civil works and re-screeding — project basis
- Mechanical ventilation system supply — project basis
- Plumbing and wet-point relocation — licensed trade
- Electrical works for hood and appliances — licensed trade
- Final renovation price — confirmed after measurement and quotation
What drives a wet kitchen quote
The specification fee starts from RM1,600 (excl. SST). The build cost that follows depends on these. The Design & Specification starting fee is the price for one room. Four rooms RM5,600. Each room beyond the fourth is RM1,600.
Indicative only — the final quotation follows site measurement, material selection and approved scope. Prices exclude SST.
How to prepare for the wet kitchen Pre-Check
A few things that make the specification faster and the quote more accurate.
- Photos of the existing wet kitchen — base cabinets, sink area and floor
- Note any swelling, delamination or rust you have already seen
- Where the floor trap is, and whether water currently pools
- How the hood vents now — outside, ceiling void, or recirculating
- Your cooking intensity — daily wok, steaming, frying
- Whether the kitchen has flooded or sits on the ground floor
- Rough measurements of the wet run, if you have them
- Which appliances stay and which are new
Based in Sibu — elsewhere in Sarawak by quotation.
Sibu as standard. Elsewhere in Sarawak by quotation, subject to schedule and capacity.
Common questions
What material should a wet kitchen cabinet be in Sarawak?
In the wet zone — the wet-kitchen base, the sink run and laundry areas — specify ACP or honeycomb aluminium, supplied and installed by ALUMAX; under the kitchen sink, protected P6 is allowed only with ALUMAX's listed protections and where ALUMAX's site measurement finds P6 suitable. Moisture-resistant board can be used on the dry side, away from direct water. The rule is to choose by moisture zone, not by budget.
Isn't a moisture-resistant board already waterproof?
No. Moisture-resistant is not waterproof. The E1, E0 or ENF marking on a board is a formaldehyde emission grade — it tells you about indoor air quality, not about how the board behaves under standing water. A board rated E0 can still swell in a wet kitchen. For the wet zone, a better emission grade is not the answer: ELS specifies aluminium, or protected P6 under the kitchen sink only with ALUMAX's listed protections and where ALUMAX's site measurement finds P6 suitable.
Why does the hood ducting matter so much?
Sarawak wok cooking produces heavy steam and oil mist. If the hood recirculates or vents into the ceiling void instead of outside air, that grease and moisture settle on cabinets, walls and hardware — feeding corrosion, swelling and mould. ELS plans the duct route, size and bends to outside air, with the shortest run, before the ceiling is closed.
What are drainage falls and why plan them before building?
Drainage falls are the slight slope in the floor that carries water to the floor trap. If the floor is flat or falls the wrong way, mopping and splash water pools under the cabinets — the worst place for standing water in a humid climate. The fall and trap position have to be coordinated with the wet-cabinet layout before tiling, because fixing it afterwards means breaking up the floor.
How much does a wet kitchen specification cost?
The Design & Specification service starts from RM1,600 for one room (excl. SST), depending on scope. The ELS technical site survey is from RM300 in Sibu, RM500 outstation. Credited in full against a qualifying confirmation within 60 days — conditions apply. That fee covers the specification and coordination — the final build cost is confirmed after measurement, material selection and an approved scope. Prices exclude SST.
Does ELS do waterproofing and drainage works too?
Waterproofing, floor drainage civil works and mechanical ventilation systems are coordinated by ELS on a project basis, because they are multi-trade. The cabinet products — wet-base aluminium, worktops, hardware — are ALUMAX-direct. ELS specifies the whole wet kitchen as one approved scope, recommends the order of the work and checks the hand-offs set in the commissioned scope, so the trades and ALUMAX build to the same plan rather than their own assumptions.
Can ALUMAX just supply the cabinets without ELS?
Yes — for a simple product job, like a single cabinet run with no water-path, ducting or drainage to coordinate, you can go to ALUMAX directly. The ELS layer is for when the wet kitchen needs the material, ducting, drainage and ventilation decided and coordinated as one scope before fabrication. If you are unsure which you need, the free Pre-Check tells you.
My current wet kitchen base is swollen — can it be saved?
Once a board carcass has swollen or delaminated from standing water, it does not recover — the structure has failed. The honest move is to replace the wet base in aluminium and fix the underlying cause: where the water came from, whether the floor falls to the trap, and how the hood and ventilation handle steam. Replacing the box without fixing the water path just repeats the failure.
- Source: State Administration for Market Regulation and Standardization Administration of China, GB/T 39600-2021 Formaldehyde emission grading for wood-based panel and finishing products (standard record), checked 19 Oct 2026
- EN 312 — particleboard grade classes (P1–P7) ↗
- EN 13986 / EN 717-1 — formaldehyde emission class E1 (≤ 0.124 mg/m³) ↗
- Sibu climate — humidity, temperature & rainfall (climate-data.org) ↗
External references for the standards and climate data cited above. ELS is not affiliated with these organisations.
Related ELS services
Every path starts the same way — the free Pre-Check tells you which one your project needs.
Cabinet Specification Service
Core, hardware, moisture zone and service access — engineered, not guessed.
OpenFull House Renovation, Sibu
Whole-home renovation planned, specified and coordinated to one approved scope.
OpenRenovation Coordination, Sibu
One approved scope and a recommended trade sequence — the seams held together.
OpenNot sure which you need? Start with the free Pre-Check: about two minutes, and it suggests which service to ask about.
Start Pre-Check- 01Recommended nextCheck the cabinet materialThe right substrate for a wet zone — before you price anything.
- 02ThenBuild & price the kitchenALUMAXProducts & PricesConfigure layout, material and storage on ALUMAX and watch the price change.
- 03ReadySave it to ELS Design BriefKeep your selections in one place.