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Frequently asked questions

How do I calculate equipment depreciation per hour?

Divide the purchase price by the total expected useful life in hours. For example, an $18,000 zero-turn mower with a 4,000-hour life costs $4.50 per hour in depreciation alone. This is the simplest and most accurate method for hourly equipment costing.

What counts as maintenance costs?

Include everything that keeps the machine running: blade replacements and sharpening, oil changes, belt replacements, air and fuel filter changes, spark plugs, tyre maintenance, and annual servicing. Don’t include upgrades or accessories — just the cost of keeping it operational.

How many hours does a zero-turn mower last?

Commercial zero-turn mowers typically last 3,000 to 5,000 hours depending on brand, model, and maintenance. Residential-grade mowers may last 1,500 to 2,500 hours. Ride-on mowers usually fall between 2,500 and 4,000 hours. Check your manufacturer’s specs for a more accurate estimate.

Should I include finance costs in my hourly rate?

Yes. If you’re making payments on the machine, those payments are a real cost of running it. Including finance costs in your hourly rate ensures your quotes cover what you’re actually spending. Once the machine is paid off, your cost per hour drops — and your margin improves.

How does equipment cost affect my quoting?

Your equipment cost per hour is one component of your total operating cost. When you know what your machine costs to run, you can add labour, travel, and overheads to build quotes that actually protect your margin. Most operators underestimate equipment costs because they don’t think about depreciation.