How do I calculate floor area from a construction plan?

Upload your construction plan (PDF, JPG or PNG) to SiteScope. Our AI detects walls, reads the printed dimensions or scale, and returns the total floor area in square metres along with wall area, ceiling area and openings — usually in under 60 seconds.

How accurate is AI floor plan measurement?

AI measurement is directional and relies on printed dimensions or scale on the plan. It's great for quick quoting and budgeting but is not CAD-grade. SiteScope offers a 5% accuracy refund policy — if our estimate is off by more than 5%, we refund the credit.

Can I use this to estimate paint, tile or drywall coverage?

Yes. SiteScope returns wall area, floor area, ceiling area and perimeters separately, so you can use the right surface for each trade — wall area for painters, floor area for tilers, ceiling area for plasterers.

Is there a free version?

Yes — your first plan is on us. Enter your email on the homepage and we'll add one free credit to your account so you can measure your first plan before paying anything.

Does SiteScope work outside Australia?

Yes. SiteScope works globally with any English-language construction plan. Prices are shown in Australian dollars by default; equivalents in USD, GBP, EUR and other currencies are calculated at checkout.

Drywall takeoff · m² and sheet count

Drywall & Gyprock Takeoff Calculator

Drywallers and gyprock installers — get your total board areain m² straight from the plan, then convert to sheet count for ordering. SiteScope returns walls + ceilings + openings separately so you can choose the right sheet thickness (10 mm / 13 mm / 16 mm fire-rated) for each surface.

Measured in m² / sheets Branded PDF in 60s ±5% refund policy

Accuracy note: SiteScope provides directional AI estimates based on printed dimensions/scale. Use for fast quoting and budgeting; verify on-site for binding quotes. ±5% accuracy refund policy applies.

How it works

From plan to drywall area — in 60 seconds.

01
Upload the plan
02
AI returns wall area (net) + ceiling area
03
Divide total m² by sheet size (e.g. 2.4 × 1.2 m = 2.88 m²) for sheet count
04
Add 5–10% wastage for cuts and edges

Built for

Who uses the drywall area calculator?

Drywall / gyprock installers
Plasterers
Wet-area board installers
Acoustic & fire-rated wall specialists
Renovators & owner-builders

Frequently asked

About drywall area.

What's the standard plasterboard sheet size?+

In Australia: 1200 × 2400 mm (2.88 m²), 1200 × 3000 mm (3.6 m²) or 1200 × 3600 mm (4.32 m²). In the US: 4 × 8 ft (~2.97 m²) or 4 × 12 ft (~4.46 m²).

Should I include the ceiling?+

Yes for new builds and full renovations. SiteScope returns ceiling area as a separate line so you can split orders by sheet thickness.

More calculators

One plan, every measurement you need.

Floor area · square metres & square feet

Floor Area Calculator

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Wall area · net of openings

Wall Area Calculator

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Ceiling area · m² and ft²

Ceiling Area Calculator

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Paint coverage · litres & cost estimator

Paint Coverage Calculator

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Tile area · m² + wastage included

Tile Area Calculator

Open calculator

Stop measuring by hand.

Upload your plan now — the first drywall area takeoff is on us.