Tool · Budget estimator

A preliminary construction budget
in 30 seconds

Set five parameters and see a budget range, cost per square metre and approximate timeline. The figures are reference values from 2026 market prices and ARKIRA's own formula; the real price comes from the drawings and the itemised BOQ in steps 2–3.

budget = area × base rate(type, grade) × f(span) × f(height) × f(size) + design / supervision fees

1 · Building type

2 · Floor area2,000 m²

Gross floor area of all storeys · one badminton court needs about 110 m² including circulation

3 · Clear span (no internal columns)30 m

The wider the span, the heavier the steel roof — four badminton courts side by side need about 26–30 m

4 · Clear height under the roof9 m

Competition badminton needs 9 m or more · high-rack warehouses usually use 10–12 m

5 · Grade of finishes and services

Include architectural and engineering design, BOQ, permits and construction supervision — one team from sketch to handover

Estimated budget range

฿—million baht

—

—Footprint, width × length

—Design + construction

—Design + supervision fees

Send this estimate to ARKIRA → Call 083 081 9000

Estimate ±15% · excludes land, earthworks, special piling, 7% VAT and special systems (machinery, cold rooms, swimming pools) · ARKIRA replies with a proposal within one working day and offers a free, no-obligation site visit

Assumptions and sources

Every line of the formula is open — like our BOQ

Building type	Base rate, standard grade (baht/m²)	Reference span	Source
Indoor sports hall	12,000 – 16,000	30 m	ARKIRA preliminary reference — long-span steel structure, sports flooring, lighting and ventilation
Factory	9,000 – 13,000	24 m	ARKIRA preliminary reference — warehouse shell + heavy-duty floor, building services and offices
Warehouse	6,500 – 8,500	24 m	2026 market price for a standard steel-frame warehouse
Covered sports ground	4,500 – 6,500	36 m	ARKIRA preliminary reference — steel frame + metal-sheet roof, no walls

Basic grade × 0.8 · Standard × 1.0 · Premium × 1.3
Span: +4% for every 6 m wider than the reference (−4% narrower) · Height: +3% for every 1 m above 8 m (−2% below)
Size: under 1,500 m² +8% · over 8,000 m² −6%
Design fee 3.5–5% of construction value (Association of Siamese Architects scale) · BOQ / permits / supervision 3–5%
Timeline: design 2–4 months + construction 3 months + 2.2 months × √(area ÷ 1,000 m²)

All figures are at 2026 price levels for Bangkok and its surroundings. The real price depends on soil conditions, the site, zoning rules and the detail of building services — in step 2 we propose two or three design options with price ranges from real costs, and in step 3 you receive an itemised BOQ. The price you see on day one is the price you pay on the last day.

A preliminary construction budgetin 30 seconds

Every line of the formula is open — like our BOQ

A preliminary construction budget
in 30 seconds