Finishes & materials · Glossary
Mil thickness
Mil thickness is a unit of measurement equal to one thousandth of an inch (0.001 inch), used to specify the thickness of vinyl flooring wear layers, paint coatings, and roofing membranes. Luxury vinyl plank wear layers typically range from 8 mil (entry-grade) to 30 mil (commercial-grade).
Why this matters for renovation projects
Mil thickness shows up on permits, contracts, or estimates that Renology covers across LA, San Diego, San Francisco, Seattle, Portland, and Denver. Most homeowners encounter the term once a project is already mid-flight, when there is no time to learn its mechanics without slowing the contractor. Knowing what it means before signing the contract is the difference between a clean project and an avoidable surprise. For how Renology calibrates cost ranges against permit valuations and contractor invoices, see the methodology.