This is a very tough question to answer specifically. It's like asking, "How many gallons of water does it take to wash a car?" It depends on the size of the car, how dirty it is, how you wash it (e.g., hose, sponge, bucket), and how much water misses the car completely.

The biggest factors to consider are surface area, surface condition, wood species, application method, and the amount of waste from the process.

Surface area is a pretty basic concept; multiplying the length by the width of a surface gives you the surface area. To determine the total surface area, add up the surface areas of all the sides and surfaces you intend to clean.

Teak that's gray, soiled, dirty, or greasy may require more teak cleaner for adequate cleaning. You may even need to do a second application to get the teak clean.

The amount of TotalBoat 2-Part Teak Wood Cleaner and Brightening System will also vary by wood type. For example, these chemicals will generally also work on other oily hardwoods such as mahogany. The denser the wood, the less teak cleaner can be absorbed into the grain. The condition of the wood presents a similar consideration. Soft, dried, open grain can absorb a surprising amount of teak cleaner compared to a more solid and dense area of wood grain.

Wasted teak cleaner is also one of the biggest factors to consider. The concept of wetting out the wood with the cleaner is pretty basic, but naturally, some of the teak cleaner will drip away or splash off the surface. Brushing the teak cleaner on, pouring it onto the wood, or using a sponge or abrasive pad will also result in some of the teak cleaner being absorbed by the application tools.

With a 2-part teak cleaner, the first component (the cleaner) gets dirt and grime out of the grain, usually leaving the wood dark and covered in grime. The second component (the brightener) is designed to neutralize the first component, so when the wood has been rinsed off after applying the second component, it dries to a bright, golden tone. In addition, having a little extra of the second component can be helpful, as it will remove any staining left over after using the first component.

Many people still want a more specific yield before starting a project. Typically, a good starting point is 15–25 square feet of wood per quart of cleaner and 60–100 square feet per gallon. However, it can vary based on the application method and condition of the wood. We also recommend budgeting for waste.