Formula & constants
A maintained asphalt lot lasts 20-plus years; a neglected one needs replacement in 10–12. A complete program budgets sweeping, crack sealing, sealcoating every 2–3 years, restriping every 18–24 months, and a pothole reserve that grows with pavement age. Freeze-thaw climates need the shorter sealcoat cycle and more crack work. All default values are editable — when your supplier's data sheet or local code says otherwise, use that number.
Where this fits in your project
This tool is one step in a bigger job. Once you have these numbers, sealcoating calculator (Sealcoating Calculator), then crack filler calculator (Crack Filler Calculator). For the full sequence see the project workflows, compare approaches on the comparison pages, and check local factors in the state guides.
Frequently asked questions
What should I budget annually for pavement maintenance?
A reasonable planning figure is a few percent of replacement cost per year, weighted toward sealcoating and crack sealing. The exact number depends on area, age, climate and traffic — which is what this calculator resolves.
How often should I sealcoat a commercial lot?
Every two to three years, with the shorter interval in freeze-thaw climates. Annual sealing wastes money and builds a thick film that cracks on its own.
Why is crack sealing the highest-return item?
Because unsealed cracks admit water into the base, and a failed base means full-depth reconstruction rather than a surface repair. Sealing cracks costs a small fraction of what letting them progress does.
How often does a lot need restriping?
Every 18 to 24 months for most commercial properties. Heavy traffic and harsh winters shorten it further, and faded accessible-space markings create compliance exposure.
Does deferring maintenance actually cost more?
Substantially. Repair cost rises roughly fourfold once pavement condition drops below satisfactory, and skipping a few hundred dollars of annual maintenance is how owners end up buying two pavements instead of one.
Last verified: — See our methodology.
Planning estimates only — confirm quantities with suppliers and local code before ordering.