The three worksheets

free tools on this site
3
figures they ask you for
15
answers they give back
14
Maintenance log, on the worked example
$9,273.60

Three worksheets, each doing a job a maintenance manager currently does in a spreadsheet or in their head: what breaking down instead of scheduling actually costs in labour, what the PM schedule costs to run and whether the technicians you have can carry it, and what a machine's pre-shift checks cost across a fleet. They run on your figures, not ours, and none of them asks for an account.

Every figure printed on this site is arithmetic on the worked example we publish: 180 assets, 240 work orders a month, 35% of them raised as breakdowns, a breakdown job at 3.4 hours against 1.1 hours planned, a loaded technician cost of $48 an hour. Change any of those on the worksheet and the numbers change with them. Nothing here is a market statistic and nothing is quoted from a third party.

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Maintenance log (What reacting costs a month): $9,273.60, Cmmsly, worked example.

Cite as: "Cmmsly tools", updated 2026-09-06, https://cmmsly.com/tools/.

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What reacting costs a month · Maintenance log · a month

$9,273.60

Source: Maintenance log, Cmmsly

Price your reactive work against plannedSee what your PM schedule costs to run