ceiling fans · sizing · new tool · 4 min read
Check my room: find your ceiling fan size by flat type
Pick your flat type, pick the room, get the blade span — plus the full size cheat sheet for every HDB flat type, and how to confirm the fit with one photo on WhatsApp.
By the Hai Guan Seng team — the folks behind the counter on Jalan Besar · 15 Aug 2026
"What size fan should I get?" is the question we answer most at the counter — usually with the customer holding up a phone photo of their living room. So we put the answer on the website. Pick your flat type, pick the room, and you get the blade span we'd recommend across the counter.
1 · Your flat
2 · The room
Recommended blade span
56"
Long-shaped living-dining layouts can be better with two 48" fans than one wide one.
Every fan we sell ships with a 5" drop rod, putting the fan about 30cm below the ceiling — fits standard HDB heights.
The full cheat sheet
Same numbers as the picker above, in one table — worth a screenshot if you're still deciding:
| Flat type | Living / dining | Master bedroom | Common bedroom | Study |
|---|---|---|---|---|
| 2-room flexi | 46–48" | 42–46" | 40–46" | Compact DC |
| 3-room | 52" | 46–48" | 40–46" | Compact DC |
| 4-room | 56" | 48–52" | 40–46" | Compact DC |
| 5-room | 56–60" | 52" | 40–46" | Compact DC |
| Condo / landed | 56–60"* | 48–52"* | 40–46" | Compact DC |
* Condo and landed rooms vary too much for a flat-type average. Measure the room's shortest wall — the blade span should be that width minus 60cm of clearance on each side.
How we landed on these numbers
Two rules do most of the work. First, clearance: blades need about 60cm from walls, cabinets and beams, or the airflow bounces back on itself and the room feels gusty instead of cool. Second, coverage: the right span moves air across the whole room at a low, quiet speed. A fan that's too small spins hard, gets noisy, and still leaves the corners warm — and a noisy fan spinning flat out is also where a DC motor's savings on your SP bill disappear.
Two edge cases worth knowing. Long living-dining layouts, common in 4-room and 5-room flats, often do better with two 48" fans than one wide one. And bedrooms want quiet airflow rather than maximum wind, so we size them a step down from what would physically fit.
The spans mirror our HDB sizing guide, so the tool and the guide never disagree. Ceiling heights, drop rods and the full clearance rules are in there.
Rather skip the tool?
Tell us your flat type and which rooms need fans. We'll come back with a shortlist from stock, prices after the $400 Climate Voucher, and install timing.
Ask for a per-room shortlistCommon questions
Is the recommended span exact for my flat?+
It's the span that works for most flats of that type and room. Block layouts vary, so treat it as the right ballpark and send us a photo of the room and ceiling on WhatsApp — we'll confirm before you buy.
Why do you ask for a photo instead of a floorplan?+
A floorplan shows the room's dimensions but not what's actually around the fan point: cabinets, beams, existing lights, cornices. Any of those can change which size fits. A live photo shows all of it.
What if my room is between two spans?+
Size up if the room runs hot or you want stronger airflow at lower speeds, size down if clearance to walls or cabinets is tight. When in doubt, ask the counter — that's what the WhatsApp button is for.
Does the tool account for ceiling height?+
Every fan we sell ships with a 5-inch drop rod, putting the fan about 30cm below the ceiling, which fits standard HDB heights. For very low or false ceilings, mention it in your WhatsApp message and we'll check the model.
From our shelves
Fans that fit these spans, by brand
Every model below covers at least one span from the cheat sheet above — and there are many more choices beyond these. The full range, every brand, size and finish, is available to order at the counter, with full warranty and the Climate Voucher accepted on every DC model.
