Fence Calculator
Calculate all materials needed for your fence project. Enter your measurements and get a complete list of posts, rails, pickets, concrete, and hardware.
How It Works
This calculator determines the total materials needed for your fence based on the total linear footage, fence height, post spacing, and number of corners and gates. It calculates the number of posts (line, corner, and gate posts), horizontal rails, pickets or panels, concrete bags for post setting, and all necessary hardware. Post depth is calculated based on fence height — typically 1/3 of the total post length should be buried underground.
Frequently Asked Questions
How deep should fence posts be?
A general rule is to bury 1/3 of the total post length. For a 6-foot fence, use 8-foot posts with 2 feet buried. For a 4-foot fence, use 6-foot posts with 2 feet buried. In areas with frost, posts should extend below the frost line (typically 36-42 inches).
How far apart should fence posts be?
Standard fence post spacing is 8 feet on center for most fence types. For chain link, 10 feet is common. In high-wind areas or for extra strength, reduce spacing to 6 feet. Never exceed 10 feet between posts.
How many bags of concrete do I need per fence post?
For a standard 4x4 post in a 10-inch diameter hole that's 24 inches deep, you'll need about 1 bag (50 lb) of concrete. For deeper holes (36 inches), plan for 2 bags per post.
What size posts should I use for a 6-foot fence?
For a 6-foot privacy fence, use 4x4 posts that are 8 feet long (2 feet buried). For gate posts or end posts, upgrade to 6x6 for extra strength. Chain link fences typically use 2-3/8 inch terminal posts and 1-5/8 inch line posts.