Disclaimer

HammerFolk's calculators provide estimates for informational and educational purposes only. They are not a substitute for a professional measurement, a contractor's quote, or the installation instructions and coverage figures printed on your specific product's packaging. Always round generously for irregularly-shaped rooms and confirm exact coverage per box with your supplier before purchasing.

Each calculator also carries a short, specific disclaimer directly on its own page. See Methodology for how formulas are sourced and verified.