About this guide

Floor Prep Guide explains the checks made before a new floor is put down: what each test measures, what a complete report shows, and how far the limits manufacturers publish spread from one floor type to the next. It is written for the homeowner holding the report. It does not grade one.

Who publishes this?

This guide is published by a company that sells flooring materials in the United States. The company is not named on this site. It sells some of the floor categories this guide covers, and some of the brands whose documents it cites. That is a conflict of interest, and it is stated here and at the foot of every page.

The publisher sells materials only. It does not install floors and does not arrange for anyone to install them. The guide links to no store, carries no offer and quotes no price. Privacy says what the site records when you visit.

How the conflict is kept out of the pages

• No brand pays to be included, and no brand is ranked.
• No page lists brands or products against each other.
• Every limit is a sentence from a manufacturer’s or NWFA’s own document, quoted with its page and the date it was read.
• A range is shown only when documents from at least two companies publish a limit.

The methodology sets out the rules, and the sources page lists every document read.

Corrections

While the publisher is not named, the site publishes no contact channel, so it cannot take corrections by message. Documents are re-read and their fingerprints compared; a changed document is read again before its sentences stay on a page.