Enter Your Fence Details
How the Fence Stain Calculator Works
This calculator multiplies your fence length by the fence height and the number of sides you want finished. That gives the total square footage to cover. It then divides that number by the typical coverage rate for your stain type and multiplies by the number of coats to estimate total gallons needed.
Coverage rates vary because thicker, more pigmented coatings do not spread as far. Solid stains typically cover about 200 square feet per gallon, semi-transparent stains about 300 square feet, and transparent sealers about 400 square feet. Rough-sawn lumber, older fences, and thirsty cedar pickets can reduce those numbers in real-world conditions.
Choosing the Right Fence Stain
Transparent stain highlights wood grain and looks natural, but it needs the most frequent maintenance. Semi-transparent stain adds color while still showing grain, making it a common choice for cedar and pressure-treated privacy fences. Solid stain hides most grain, evens out mismatched boards, and usually lasts the longest in full sun.
Fence Prep and Application Tips
- Wash the fence and remove dirt, mildew, and loose old coating before staining
- Let pressure-treated lumber dry until water absorbs into the surface instead of beading
- Stain when temperatures are between 50 and 90 degrees with dry weather in the forecast
- Use a brush or back-brush after spraying so stain works into edges and grain
- Plan for more stain on rough boards, shadowbox fences, and cap-and-trim details
When to Re-Stain a Fence
South- and west-facing fences weather fastest because they take the most sun. Transparent products often need maintenance every 1 to 2 years, semi-transparent finishes usually last 2 to 4 years, and solid stain can last 4 to 5 years. A quick splash test helps: if water soaks in fast instead of beading, the wood is ready for maintenance.
Frequently Asked Questions
How many gallons of fence stain do I need?
Multiply your fence length by height and the number of sides you plan to stain. Divide that area by the stain coverage rate, then multiply by the number of coats. For example, a 120-foot fence that is 6 feet tall on both sides has 1,440 square feet of area before coats.
What type of fence stain lasts the longest?
Solid stain usually lasts the longest because it has the most pigment and UV protection. Semi-transparent stain offers a middle ground between appearance and durability, while transparent sealers need the most frequent reapplication.
How many coats of stain should a fence get?
Two coats is typical for most fences, especially when you want even color and longer protection. Some transparent products use one coat, while dry or weathered boards may absorb more than expected.
Do I need to prep a fence before staining?
Yes. Clean the boards thoroughly, remove mildew, and let the fence dry before staining. New pressure-treated wood should usually weather for a few months before it is ready to absorb finish.
How long should I wait before recoating fence stain?
Check the label for your product, but many fence stains need 4 to 24 hours between coats. Full maintenance recoats are usually needed every 2 to 5 years depending on exposure and product type.