Free tools, templates & calculators for maintenance teams.
Battle-tested spreadsheets, depreciation calculators, compliance checklists, and on-the-go tools — built by the AssetOS team from eight years of hands-on rail maintenance.
Templates
7 free templatesCMMS in Excel — Free Maintenance Tracking Template
Four-sheet Excel workbook for tracking assets, work orders, and maintenance schedules. The starting point for teams before they outgrow spreadsheets.
Client Site Asset Register — H&S Template Pack
Three ready-to-use spreadsheets for health & safety and fire safety companies managing assets across multiple client sites.
Fleet Maintenance Tracker
Log services, inspections, and tachograph checks across 10–200 vehicles. Includes a DVSA-style inspection checklist.
LOLER Thorough Examination Checklist
UK LOLER-compliant inspection template for lifting equipment — editable Excel version plus a print-ready PDF.
Facilities PPM Schedule Builder
Annual planned preventive maintenance schedule with 180+ pre-loaded task frequencies for commercial buildings.
Driver Daily Vehicle Check (DVSA)
Printable and digital walk-around check sheet. Covers 18 safety-critical items in DVSA order.
Fire Extinguisher Service Log Pack
Monthly visual, annual service, and 5-year certificate templates meeting BAFE & BS 5306 requirements.
Calculators
6 free calculatorsMTTR & MTBF Calculator
Enter downtime events and failure intervals. Get your mean time to repair, mean time between failures, and availability — instantly.
MTBF Calculator
Operating hours ÷ failures. Get MTBF, failure rate, availability, and the odds your asset survives the next run — with a worked example.
Vehicle Total Cost of Ownership
Depreciation + fuel + maintenance + downtime = true TCO per vehicle per year. Works for vans, trucks, and fleet cars.
OEE Calculator
Overall Equipment Effectiveness, from availability × performance × quality. World-class benchmarks built in.
Facilities Maintenance Budget Estimator
Industry benchmarks for annual maintenance spend by building type, size, and age. Outputs a defensible budget line.
Asset Depreciation Calculator
Straight-line, declining balance, or units-of-production — with full schedule export for accountants.
Risk Matrix Calculator (5×5)
Likelihood × severity, with auto-generated RAG rating and recommended mitigation timeline. HSE-aligned.
The five we would hand you first.
Every tool is free, every tool is battle-tested by real maintenance teams. No gated lead magnets — just useful stuff we built along the way.
Browse all 16 toolsGuides & playbooks
3 free guidesThe CMMS Buyer's Guide for 2026
18 pages on what to ask vendors, what "enterprise-ready" actually means, and how to run a 30-day proof of value.
Moving Off Spreadsheets: The 72-hour Playbook
Our step-by-step migration guide. Copy the schedule, assign the owners, ship the cutover in one long weekend.
PPM Frequency Reference Handbook
Recommended inspection intervals for 180+ facility asset types. Cross-referenced against UK & US regulations.