How do I calculate how many fence posts I need?

Divide your total fence length by the post spacing (typically 6 or 8 feet), then add 1 for the end post. For example, a 100-foot fence with 8-foot spacing needs (100 / 8) + 1 = 14 posts. Add extra posts for corners and gates.

How much concrete do I need per fence post?

Most fence posts require 1-2 bags of 50 lb concrete mix, depending on post size and hole depth. A standard 4x4 post in a 10-inch diameter, 24-inch deep hole typically needs about 1.5 bags. Larger posts or deeper holes require more.

How many pickets do I need for a privacy fence?

For a standard 6-foot privacy fence using 5.5-inch wide pickets with no gaps, you need about 22 pickets per 10 feet of fence. Calculate by dividing fence length by picket width. Add 10-15% extra for waste and cutting.

What is the best spacing for fence posts?

Standard fence post spacing is 6-8 feet apart. Use 6-foot spacing for taller fences (6-8 ft) or areas with high winds. Use 8-foot spacing for shorter fences or sheltered areas. Never exceed 8 feet between posts.

Fence Calculator | Galick Tools

Fence Style

Fence Dimensions

Total Fence Length

Fence Height Select a preset or enter custom height

Post Spacing Distance between fence posts

Gates (Optional)

Gate Width

Quantity

Gates require additional posts. Add each gate type separately.

Cost Estimate (Optional)

Cost Per Linear Foot

Materials only, excluding labor

Fence Materials Needed

Posts

posts

Rails

boards

Pickets

pickets

Concrete

bags (50 lb)

Complete Materials List

4x4 Posts 0 posts

2x4 Rails 0 boards

1x6 Pickets 0 pickets

Chain Link Mesh 0 ft

Concrete (50 lb bags) 0 bags

Screws/Nails 0 lbs

Post Caps 0 caps

Fence Section Diagram

Fence Installation Tips

Post Installation

Set posts at least 1/3 of their length in the ground (2 ft min for 6 ft fence)
Use post hole digger or auger for consistent holes
Set posts in concrete for best stability
Check posts are plumb before concrete sets
Let concrete cure 24-48 hours before attaching rails

Materials Guide

Use pressure-treated lumber for ground contact
Cedar and redwood are naturally rot-resistant
Galvanized or stainless hardware prevents rust
Order 10-15% extra materials for waste and mistakes
Check local codes for height and setback requirements

Cost Factors

Wood privacy: $15-35 per linear foot (materials)
Wood picket: $10-25 per linear foot (materials)
Chain link: $8-18 per linear foot (materials)
Vinyl: $20-40 per linear foot (materials)
Labor typically adds $10-30 per linear foot