Construction Calculator for United States

Free construction calculators preconfigured for United States. FRELUX runs every calculation with this market's template defaults: local wall units, 42.6kg cement bags, and local electrical and plumbing practice. Prices come from the live price database in USD ($).

United States building-practice defaults

• Default wall unit: 8x8x16 CMU (Actual 7-5/8 x 7-5/8 x 15-5/8 in / 194x194x397mm) (397 x 194 x 194 mm)
• Cement bag weight: 42.6 kg
• Currency: USD ($)

Electrical practice

• Standards: NFPA 70 (National Electrical Code 2023)
• Nominal voltage: 120V / 240V split-phase
• Typical wiring: Non-metallic sheathed cable (Type NM-B / Romex) in stud cavities

Plumbing practice

• Standards: International Plumbing Code (IPC 2024) / Uniform Plumbing Code (UPC)
• Water supply piping: PEX-A / PEX-B tubing or Type L / M Copper (ASTM B88)

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 United States practice
• Plumbing Estimator: water supply and drainage takeoff
• Regional Cost Index: current material price levels

Are these figures certified for United States?

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.