What RoxyCalc is for
Use RoxyCalc to make an early quantity check before comparing products or requesting a supplier quote. The calculators cover questions such as paint coverage, flooring packs, concrete bags, sheets, pavers, fencing, decking, fasteners, and trim.
Each tool is designed around a material decision rather than a generic number. Results show the entered measurements, practical rounding, allowance where it applies, and the assumptions used. The site does not require an account, checkout, or saved project to use its calculators.
Who publishes RoxyCalc
RoxyCalc is published and maintained by XiriusAI. XiriusAI is responsible for the site content and for receiving correction reports through the contact address on this site.
RoxyCalc does not claim trade licences, engineering certification, manufacturer approval, or authority to interpret local building requirements.
How calculations are documented
Each calculator documents its input meanings, unit handling, formula, rounding, planning defaults, and limits in the methodology. Representative examples check that a result follows the stated formula.
Defaults are planning aids, not universal installation rules. Product labels, installation instructions, drawings, site conditions, and applicable local requirements always take priority. Advertising and analytics services are separate from the calculation logic and do not change a quantity result.
What a result does not provide
A planning estimate is not a structural design, code assessment, permit decision, trade quotation, or substitute for a qualified professional. Projects involving structural work, waterproofing, electrical, gas, plumbing, fire safety, or unusual site conditions need the appropriate advice.
Corrections and feedback
Found a result that does not match the stated formula, an unclear input, or an error in an article? Please tell us. Include the calculator or page, your measurements and units, the displayed result, and what you expected to see.
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Useful starting points
New to estimating? Start with measurement, waste, rounding, and irregular-room guidance. Then choose the calculator that matches the material you are buying.