Code Check Plumbing & Mechanical 6th edition



Code Check Plumbing and Mechanical 6th edition is based on the most current code editions, as well as annotations to the prior code editions, so it can be used in almost all jurisdictions in the United States.

  • Primary codes are the 2021 IRC, 2021 UPC, and 2021 UMC.
  • Annotated changes from the 2018 code editions.
  • 115 Illustrations and 52 tables in the print book (126 and 55 in eBook).
  • Includes ASHRAE 62.2 information on indoor air quality and ventilation.
  • Includes NFPA 211 information on fireplaces and fireplace stoves.
  • Includes SMACNA information on air ducts.
  • Can be used as a field guide, for plan review, or as a classroom text.
  • Publisher’s list price 29.99, our introductory price 26.99 for the print version.
  • Endorsed by the International Code Council
  • eBook contains additional material not found in the print edition.
Original price was: $29.99.Current price is: $26.95.


Code Check Plumbing & Mechanical 6th edition is based on the 2021 IRC, 2021 UPC, and 2021 UMC, as well as other codes and standards, including ASHRAE 62.2., NFPA 211, and SMACNA.

  • eBooks are readable with Adobe Acrobat or Adobe Reader. Other PDF viewers, such as Preview, will not display the illustrations or navigation tools. Adobe reader is a free download.
  • NOTE! When you purchase an eBook, the books are not instantly available. Within 20 minutes and up to 12 hours, you will receive an email with the file as an attachment. Please be sure that your spam filter does not block messages from Machelle Walker or from
  • Electronic Book Licensing:    CodeCheck eBooks are licensed for a single user on up to 4 personal devices.  The eBook may be used on one device at a time.  This limited license does not allow the installation of the eBook for use in a shared network accessible to multiple individuals whether internal or external.  This includes services such as DropBox, OneDrive, etc.   If you would like to purchase eBooks for use by multiple individuals, your company, building department, etc., please use the contact form at the top of the page to obtain a quote.

Sample Pages

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Referenced Codes

  • 2021 International Residential Code
  • 2021 Uniform Plumbing Code
  • 2020 Uniform Mechanical Code
  • ASHRAE 62.2 Ventilation & Indoor Air Quality
  • 2021 International Private Sewage Disposal Code
  • 2020 NFPA 31 Standard for Oil-burning Equipment
  • 2021 NFPA 54 National Fuel Gas Code
  • 2020 NFPA 58 Liquified Petroleum Gas Code
  • 2019 NFPA 211 Standard for Chimneys, Fireplaces & Solid-fuel Appliances
  • SMACNA 006 Duct Support