Material Guide · September 2026

Venetian Blinds Material Guide: Timber, Polystyrene, PVC, or Aluminium?

Venetian blinds live and die by their slats. The same tilt-and-lift mechanism sits behind four very different materials — and in Singapore's climate, the one you pick affects everything from motor choice to how long the blind lasts. Here's what actually separates them.

Four Materials, One Mechanism

Every Venetian blind we install works the same way — a motor tilts and lifts a stack of horizontal slats via a headrail mechanism. What changes between materials is the slat itself: real timber wood, polystyrene (PS), PVC, or 25mm aluminium. All four fit the same 2.4m max panel width and the same tilt-at-any-height control, so the decision really comes down to look, humidity resistance, weight, and price — not functionality.

The three 5cm-wide materials — Timber, PS, and PVC — share the same slat width and always pair with the M-size motor. The 25mm Aluminium slats are narrower and lighter, pairing with the smaller S-size RF motor instead. That's a mechanical fact, not an upsell: heavier 5cm slats simply need more torque to tilt and lift smoothly.

🪵 Real Timber Wood — $120/sqm

Genuine wood grain, surface-coated for wipe-clean maintenance. No two slats look identical, which is exactly the appeal — it reads as a premium, natural material in a way no synthetic can fully replicate. The tradeoff is Singapore's humidity: the surface coating helps a lot, but long-term moisture exposure can still affect natural wood over time, and it's the only one of the four with any termite or pest risk (though our coated slats resist this far better than untreated lumber). Expect roughly 7–10 years of life with basic coating maintenance. Best suited to dry, well-ventilated rooms — a study, a formal living room, a dining area away from direct window spray.

🌳 Polystyrene (PS) — $110/sqm

Our most popular slat and the practical all-rounder. PS gives a convincing wood-look print at a lower price than real timber, and it outperforms timber on the things that matter most in Singapore: it's moisture-resistant, holds its shape long-term without warping, and isn't affected by pests at all. It's also roughly 50% lighter than timber, which reduces motor strain over years of daily use. Typical lifespan runs 10+ years. If you like the timber look but want it to survive a humid living room or bedroom without babysitting, this is usually the right call.

🚰 PVC — $100/sqm

The most waterproof option of the four, with a plastic finish rather than a wood-look print. This is the material we recommend without hesitation for kitchens, bathrooms, and balcony-facing windows where splash exposure is a real possibility. It holds up well overall, though very wide PVC slats can flex slightly over several years — not a functional problem, just a cosmetic one worth knowing about. Typical lifespan is 5–7 years, shorter than PS or Aluminium but priced accordingly.

📐 25mm Aluminium L-Shape — $80/sqm

The lightest, most economical, and most compact of the four, with a narrower 25mm slat profile that suits offices, study rooms, and narrower windows where a chunkier 5cm slat would feel heavy. It's fully waterproof, rigid, pest-proof, and holds its shape indefinitely — the tradeoff is purely aesthetic, trading the wood-adjacent warmth of the other three materials for a clean, modern, metal look. It also uses the smaller S-size RF motor, which is a lower-cost motor tier on top of the lower slat price.

Side-by-Side Comparison

Factor	Timber ($120/sqm)	PS ($110/sqm)	PVC ($100/sqm)	Aluminium ($80/sqm)
Look	Genuine wood grain	Wood-look print	Plastic finish	Modern, minimal metal
SG humidity (90%+)	Coating helps; long-term moisture can affect wood	Moisture-resistant	Fully waterproof	Waterproof
Pest-proof	Natural wood — not pest-proof	Yes	Yes	Yes
Typical lifespan in SG	7–10 yrs with maintenance	10+ yrs	5–7 yrs	10+ yrs
Motor required	M-size	M-size	M-size	S-size RF (lighter/cheaper)
Best for	Dry study, formal living room	Living room, bedroom, dining	Kitchen, bathroom, balcony-facing	Offices, narrow windows, budget rooms

Motor and Smart Home Notes

For 5cm slats (Timber, PS, PVC), the M-size motor comes in three flavours: the A-OK Tuya Smart Motor (wired, Wi-Fi, works with Google Home and Alexa, no hub needed), the Aqara Smart Motor TA (Zigbee, Apple HomeKit via an Aqara hub), or the A-OK Tuya Cordless Motor (rechargeable battery, RF remote included). All three integrate into the same Tuya/Smart Life or Aqara ecosystem as our other product lines, so a Venetian blind sits on the same "Good Morning" or "Movie Night" scene as your curtain track or roller blinds. For 25mm Aluminium, the AOK RF Motor is the smart option — plug-in with RF remote control, though without direct Wi-Fi/HomeKit integration; WhatsApp us if you need custom smart-home linking for an all-aluminium order. A Premium Manual One-Loop/Mono option is always available free of charge across every material if you'd rather skip motorisation on a particular window.

Which Should You Pick?

Kitchen, bathroom, or balcony-facing window: PVC or Aluminium — both fully waterproof, PVC has the softer matte look, Aluminium the lower price and narrower profile.

Living room or bedroom, want a natural wood look: PS is the practical choice — near-identical look to timber, better humidity performance, lower price.

Dry, well-ventilated room, want genuine timber character: Real Timber Wood, accepting the slightly shorter humidity-driven lifespan.

Home office, study nook, or a tight budget: 25mm Aluminium — narrowest profile, lowest slat and motor cost, still fully waterproof and pest-proof.

Frequently Asked Questions

Which Venetian slat material is best for a humid HDB bathroom or kitchen?

PVC is the most waterproof of the four and the one we recommend for bathrooms, kitchens, and balcony-facing windows. Aluminium is also fully waterproof and works well there, though its flat metal slats show water spots more visibly than PVC's matte finish.

Is real timber wood worth the extra cost over Polystyrene?

Only if you want genuine wood grain with natural variation between slats — PS gives a very close wood-look print at a lower price and better moisture resistance. In Singapore's 90%+ humidity, PS is usually the more practical choice for otherwise identical rooms; save real timber for dry, well-ventilated spaces like a study or formal living room.

Why does the slat material affect which motor I can use?

The 5cm slats (Timber, PS, PVC) are heavier and wider, so they need the more powerful M-size motor to tilt and lift smoothly regardless of which of the three you choose. The 25mm Aluminium slats are much lighter, so they pair with the smaller S-size RF motor instead — this is a mechanical requirement, not a price upsell.

Do termites or pests affect any of these materials?

Real timber is the only one at any risk, since it's natural wood — though our coated slats are far more resistant than untreated wood. PS, PVC, and Aluminium are all synthetic or metal and unaffected by pests.

Can I mix materials across different rooms in the same order?

Yes — most Singapore orders do exactly this: PVC or Aluminium in the kitchen and bathroom, PS or Timber in the living room and bedrooms. Each window is quoted and motorised independently, so mixing materials doesn't add any complexity to installation or the smart home app.

Not sure which slat fits your window?

Get an instant quote across all four materials on our Venetian Blinds page, or message us on WhatsApp for a free on-site survey — no obligation.

See Venetian Blinds Chat on WhatsApp