Industrial, Logistics & Plant Operations

Facilities, Janitorial & Lighting Operations Calculators

Bidding and design math for building service contractors and facility managers: cleaning labor from production rates, monthly contract pricing, and the lumen-method lighting layout that decides fixture counts. Used by janitorial companies, in-house FM teams and electrical designers.

2 calculators in this category

Janitorial Cleaning Time Calculator (Production Rates)Production-rate estimating; ISSA Cleaning Times methodologyJanitorial estimating is production-rate arithmetic: divide each surface's area by the square feet an operator covers per hour…
Lumen Method Lighting CalculatorIES lumen methodThis calculator applies the lumen method , the average-illuminance procedure published by the Illuminating Engineering Society…

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Where this work overlaps other trades and disciplines.

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