Disclaimer

Not financial, tax or legal advice

Trade Price Book provides tools that do arithmetic on the numbers you enter and guides that explain, in general terms, how trade businesses price work, estimate, invoice and size equipment. This is general information for education. It is not financial, tax, accounting or legal advice, and it does not take your business, your market or your state into account.

Trade Price Book is run by people who operate a plumbing and sewer business in the United States. We are not accountants, attorneys or engineers, and the guides have not been reviewed by one. Rules on payroll taxes, sales tax on materials, contractor licensing, lien rights and consumer contracts differ by state and change over time. Ask a qualified professional before you rely on a rate, a tax treatment or a contract term.

Not engineering or code advice

The sizing tools use published formulas and the assumptions shown on each page. They are not a substitute for a load calculation, a design by a licensed professional where one is required, or the tables in the code edition your jurisdiction enforces. Room cooling estimates are not a whole-house load calculation. Voltage drop and other electrical results do not tell you what conductor or breaker the code requires.

No guaranteed results

We work to keep the tools and guides accurate, and each guide lists its sources. We can't guarantee that everything on the site is complete, current or free of errors, or that any price, margin, profit or outcome will follow from using it. Default values in the tools are examples, not recommendations for your business.

Software prices change

Comparisons of software are built from the vendors' public pricing and documentation on the date shown on each page. Vendors change plans, prices and fees often. Check the vendor's own site before you buy.

Sources change

Tax rates, mileage rates, wage bases and codes are updated from time to time. Guides show when they were last updated and link to their sources. If a source and a guide disagree, the source wins. Please tell us so we can correct the guide.

External links, affiliate links and ads

Links to other websites are provided for reference, and ads are served by Google. Some links are affiliate links, marked where they appear. None of them is an endorsement of an advertiser, and we aren't responsible for other sites' content.

Not affiliated

Trade Price Book is independent. It is not affiliated with, endorsed by or sponsored by any government agency, code body, trade association or software company cited or compared on the site. Their names are used only to identify the sources of the information discussed and the products described.

See also the Terms of Use and the Editorial Policy.