Construction Calculator for China

Free construction calculators preconfigured for China. FRELUX runs every calculation with this market's template defaults: local wall units, 50kg cement bags, and local electrical and plumbing practice. Prices come from the live price database in CNY (¥).

China building-practice defaults

• Default wall unit: Standard Sintered Brick (240x115x53mm) (240 x 53 x 115 mm)
• Cement bag weight: 50 kg
• Currency: CNY (¥)

Electrical practice

• Standards: GB 50054 (Code for Design of Low Voltage Electrical) & GB 50303 (Acceptance Code)
• Nominal voltage: 220V single-phase / 380V three-phase
• Typical wiring: BV single-core copper wire (flame retardant ZR-BV or WDZ-BYJ low smoke halogen-free) inside rigid cold-bend PVC-U conduit

Plumbing practice

• Standards: GB 50015 (Standard for Building Water Supply and Drainage Design) & CJ/T standards
• Water supply piping: Polypropylene random copolymer pipe (PP-R GB/T 18742) or thin-walled stainless steel pipe

Start a calculation

• Build-to-Roof Estimator: full construction cost from foundation to roof
• BOQ Generator: bill of quantities with VAT and contingency
• Electrical Estimator: wiring takeoff per China practice
• Plumbing Estimator: water supply and drainage takeoff
• Regional Cost Index: current material price levels

Are these figures certified for China?

They are template starting defaults for quantity takeoffs, referenced to the standards listed above. Always confirm sizes, materials and current prices with your local supplier or licensed professional before purchasing.