About

About FloorCalc Pro

Free flooring calculators and plain-language guides for homeowners planning, troubleshooting, or installing floors.

FloorCalc Pro exists to answer the practical questions that come up before and after a flooring project: how much material to order, why a floor is clicking or separating, whether a slab is ready for flooring, and which transition piece fits a doorway. Every calculator and guide is free to use, with no account required.

How our content is produced

Our guides are written against published industry guidance rather than opinion. Where a topic is governed by a recognized standard or trade association, we reference it and link to the source, including:

  • NWFA (National Wood Flooring Association) technical guidelines for hardwood installation, acclimation, and moisture evaluation
  • TCNA (Tile Council of North America) Handbook and ANSI A108 series for tile substrate flatness, grout joints, and installation methods
  • CRI (Carpet and Rug Institute) 104/105 installation standards for carpet and cushion
  • RFCI (Resilient Floor Covering Institute) technical guidance for vinyl and resilient flooring
  • NALFA (North American Laminate Flooring Association) guidance for laminate flooring
  • ASTM standards referenced across the industry, such as ASTM F710 for concrete floor preparation, ASTM F1869 for calcium chloride moisture testing, and ASTM F2170 for in-situ relative humidity testing

Specifications vary between products, which is why our guides consistently point you back to the written installation instructions for the exact product you are using. Where industry norms exist, we state them; where requirements differ by manufacturer, we say so instead of inventing a number.

What our tools are — and are not

Our calculators produce planning-level estimates for square footage, waste, stairs, carpet seams, pattern repeats, and transitions. They are designed to help you prepare for a purchase or an installer conversation. They are not a substitute for a professional measure, a manufacturer's installation instructions, or local building requirements — final quantities and methods should always be verified before ordering.

Contact

Questions, corrections, or feedback are welcome. Visit the contact page to reach us. If you spot something in a guide that does not match current industry guidance, we want to know about it.