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Practical code guides, inspection checklists, and sizing references. Written for tradespeople who need real answers on the job site.
Comprehensive guide to ADA bathroom clearances, grab bars, accessible fixtures, and ICC A117.1 requirements for commercial and residential construction.
A practical guide to NEC conduit fill calculations using Chapter 9 Tables 4 and 5. Covers the 40%/60%/53% fill rules, EMT/RMC/PVC conduit, conductor areas, and worked examples for common scenarios.
A practical guide to sizing residential natural gas piping using IFGC Table 402.4. Covers BTU calculations, pipe length, pressure drop, and common sizing scenarios.
A comprehensive guide to GFCI protection requirements under the NEC 2023 (NFPA 70), covering dwelling units, commercial spaces, and the expanded 250-volt requirement.
Learn how to size HVAC ductwork correctly using CFM requirements, friction rate, and ACCA Manual D principles. Includes a practical duct sizing reference chart.
Complete R-value requirements by climate zone for ceiling, wall, floor, basement, and slab insulation per IECC and IRC N1102.
A field-ready plumbing rough-in inspection checklist covering drain, waste, vent, and water supply requirements under both the IPC and UPC codes.
A practical guide to NEC Table 310.16 wire sizing for electricians. Learn how to select the correct wire gauge for any amperage using copper and aluminum conductors.
Trade Code Wizard puts NEC, IPC, UPC, IMC, IBC, IRC, and IFGC tables in your pocket.
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