Typical internal floor areas, what to watch for on the drawing, and how to measure each layout accurately for flooring, skirting/baseboard and renovation quotes, wherever you are.
Studios pack living, sleeping and cooking into one open space, typically 25–45 m² depending on the market. Small footprints make quotes unforgiving: a 2 m² measuring error can be 5–8% of the whole job.
The classic starter apartment: a bedroom, a combined living/dining space, kitchen and bathroom in roughly 40–70 m² depending on the city and building age.
The workhorse of rental and family housing worldwide at roughly 55–95 m². Two bedrooms plus a living zone means more internal walls, and skirting runs that are easy to under-count from a glance at the plan.
Family-sized apartments run about 80–140 m² with three bedrooms and frequently a second bathroom or en-suite, which means more thresholds and more places for a quote to leak.
Townhouses and terraced houses spread 90–200 m² across two or three storeys. Multi-storey plans mean multiple drawings per unit: double or triple the measuring work, and the same multiplier on errors.
Single-family homes range enormously. 120–300 m² is typical, but larger builds are common. At this scale, percentage errors turn into serious money: 3% on a 250 m² timber floor is most of a room.
Developer condominium plans follow the same measuring logic as any apartment (trace the internal floor, calibrate to a printed dimension), but with more balconies, planters and ledges to exclude.
American plans dimension in feet and inches — PlanTape reads them natively and measures in sq ft, for flooring and baseboard quotes. Guides per home style:
The classic American single-story home at roughly 1,100–2,400 sq ft. One level means one drawing and no stair math, but open-plan layouts and attached garages leave plenty of room for a takeoff to go wrong.
Colonials run about 1,500–3,000 sq ft over two full stories: living spaces down, bedrooms up. Two drawings per house means double the measuring, and a stair opening to keep out of the upstairs total.
Split-levels stagger 1,200–2,200 sq ft across three or more half-flights: a living level, a bedroom level and a lower family room. Every level is a separate partial drawing, which is exactly where plan-based quotes fall apart.
Cape Cods pack 1,000–2,000 sq ft into a story and a half: a full first floor plus an upstairs tucked under the roof, where sloped ceilings and knee walls shrink the usable — and floorable — area.
Bungalows and craftsman cottages run about 900–1,800 sq ft on a single compact story. Small footprints make percentage errors expensive, and original hardwood makes refinish-vs-replace a common split in the quote.
A duplex is two dwellings on one plan — side-by-side or stacked — at roughly 800–1,500 sq ft per unit. Quoting both units off one drawing is exactly where rooms get double-counted or missed.
Public housing in Singapore has its own well-defined layouts, and its own measuring traps (household shelters, access balconies, angled blocks). Detailed guides per flat type:
The smallest current HDB flat type in Singapore, offered in Type 1 (~36–38 m²) and Type 2 (~45–47 m²) layouts, popular with singles and downsizing retirees.
A staple of older Singapore estates like Toa Payoh, Ang Mo Kio and Bedok, typically 60–65 m² with two bedrooms, a very common size for skirting and flooring repackaging jobs.
Singapore's most common flat type at roughly 85–93 m² with three bedrooms, the bread and butter of renovation and flooring quotations in the city-state.
At about 110–113 m², the 5-room HDB flat adds a dining area or study zone to the 4-room template: more floor, more skirting, and more places for a quote to go wrong.
Built mainly in the late 1980s–1990s, Singapore Executive Apartments run ~130–145 m² with generous living zones, and often angled walls that make manual measurement tedious.
Two-storey HDB living at ~139–155 m². Maisonette plans come as two separate floor drawings, which doubles the measuring work, and the room for error.
Jumbo flats are two adjacent Singapore HDB flats converted into one, commonly in Woodlands, Yishun and Tampines, spanning roughly 145–190 m² depending on the pair joined.
Designed for multi-generation households in Singapore, 3Gen flats run ~115–122 m² with four bedrooms, two of them en-suite, so more wet areas and more skirting runs than a 5-room.
Design, Build and Sell Scheme flats (Singapore, 2005–2011: think The Pinnacle@Duxton or City View @ Boon Keng) were designed by private developers, so layouts vary far more than standard HDB types.
