Enter the length, height, coverage per gallon of stain, and area covered by one gallon of stain into the calculator to determine the amount of stain needed for coverage. This calculator can also evaluate any of the variables given the others are known.

Fence Stain Coverage Formula

The following formula is used to calculate the amount of fence stain needed for coverage.

AS = (L * H * C) / A

Variables:

  • AS is the amount of stain needed for coverage
  • L is the length of the fence
  • H is the height of the fence
  • C is the coverage per gallon of stain
  • A is the area covered by one gallon of stain

To calculate the amount of fence stain needed for coverage, multiply the length of the fence by the height of the fence, then multiply the result by the coverage per gallon of stain. Divide the product by the area covered by one gallon of stain.

What is a Fence Stain Coverage?

Fence stain coverage refers to the area that a specific quantity of fence stain can cover effectively. It is usually measured in square feet per gallon and can vary depending on the type of stain and the condition and type of the wood. The coverage rate is typically provided by the manufacturer and can be found on the product label. Factors such as the porosity of the wood, the application method, and the number of coats applied can affect the actual coverage rate. For instance, rough, weathered, or porous surfaces may require more stain, thus reducing the coverage rate. On the other hand, smooth and well-prepared surfaces may require less stain, thus increasing the coverage rate. Therefore, it’s important to consider these factors when calculating the amount of stain needed for a fence staining project.

How to Calculate Fence Stain Coverage?

The following steps outline how to calculate the Fence Stain Coverage.


  1. First, determine the area of the fence to be stained (in square feet).
  2. Next, determine the coverage rate of the stain (in square feet per gallon).
  3. Next, gather the formula from above = Fence Stain Coverage = Area of Fence / Coverage Rate.
  4. Finally, calculate the Fence Stain Coverage.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Area of fence (in square feet) = 500

Coverage rate of stain (in square feet per gallon) = 200