Fence Post & Picket Calculator

Calculate posts, rails and pickets needed for your fence project.

POST SPACING HEIGHT FENCE SECTION — POSTS + RAILS + PICKETS

Fence Post & Picket Results

POST DEPTH: Bury 1/3 of total post length. For 6ft fence: use 8ft posts, bury 24-30". Set in concrete (1-2 bags per post). Gate posts: add 6" more depth. Always check frost line depth in your area.

Fence Material Calculator

Calculate all materials needed: concrete, hardware, nails and screws.

Material List

CONCRETE: Use fast-setting concrete for fence posts. Pour dry mix into hole, then add water. One 50lb bag fills ~0.38 cu ft. For a 10" diameter, 30" deep hole: use 2-3 bags per post.

Fence Stain & Paint Calculator

Calculate stain or paint needed for your wood fence.

Stain / Paint Results

STAIN TIP: Apply in 50-90°F, no rain for 24hrs. Backroll after spraying for best penetration. Rough-sawn wood absorbs 20-30% more stain than smooth. Always stain/seal within 2-4 weeks of building.

Fence Cost Calculator

Estimate total fence project costs including materials, labor and extras.

Fence Cost Estimate

SAVE MONEY: Get 3+ quotes. Buy materials yourself — contractors mark up 15-30%. Fall/winter installs are 10-20% cheaper. Cedar lasts 15-20 yrs vs. pine 5-7 yrs — worth the upfront cost. Always call 811 before digging.

Fence Reference Guide

Post depth, spacing standards, material comparisons and sizing charts.

Post Depth & Sizing

Fence Height Post Length Min. Depth Post Size
3 ft 5 ft 18-24" 4×4
4 ft 6.5 ft 24-30" 4×4
5 ft 7 ft 24-30" 4×4
6 ft 8 ft 24-30" 4×4 or 6×6
8 ft 11 ft 36-42" 6×6

Material Comparison

Material Cost/ft Lifespan Maintenance Best For
Cedar $15-$30 15-20 yrs Stain every 2-3 yrs Privacy, aesthetics
Pine (PT) $10-$20 10-15 yrs Stain every 1-2 yrs Budget privacy
Chain Link $10-$25 20-30 yrs Minimal Security, pets
Vinyl $20-$40 20-30 yrs Wash only Low maintenance
Wrought Iron $25-$50 50+ yrs Rust treatment Decorative, security
Composite $25-$45 25-30 yrs Wash only Premium, eco

Picket Spacing Guide

Style Picket Width Gap Pickets/ft Look
Privacy 5.5" 0" 2.2 No gaps, full privacy
Picket 3.5" 3.5" 1.7 Classic picket look
Board-on-Board 5.5" -1" 2.9 Overlapping, 30% more
Shadow Box 5.5" 2.5" 3.0 Alternating sides

Fence Calculator Guide

Our fence calculator helps you determine exactly how many fence posts, pickets, rails, and materials you need. Enter your total linear feet of fence, select your fence height and style, and get an instant material list with quantities.

How to Calculate Fence Posts

Divide your total fence length by post spacing (6-8 feet for wood, 8-10 feet for chain link) and add 1. For a 150ft fence with 8ft spacing: 150 ÷ 8 + 1 = 20 posts. Add extra posts for corners and gates. Each gate needs 2 additional posts.

Fence Post Depth Calculator

The general rule: bury 1/3 of the total post length. For a 6ft fence, use 8ft posts and bury 24-30 inches deep. Gate and corner posts should be 6" deeper. Always dig below your local frost line and set posts in concrete for maximum stability.

Fence Cost Estimator

Wood privacy fence costs $15-$35 per linear foot installed. Chain link: $10-$25/ft. Vinyl: $20-$40/ft. A typical 150ft wood privacy fence costs $2,500-$5,000 for materials and labor. DIY saves 40-60% on labor costs.

Frequently Asked Questions

How many fence pickets do I need?+
For a privacy fence with 5.5" wide pickets: multiply fence length (ft) × 2.2 = number of pickets. For a 150ft fence: 150 × 2.2 = 330 pickets. Add 10% for waste and cuts. Board-on-board uses 30% more pickets due to overlap.
How much concrete per fence post?+
For a standard 10" diameter, 30" deep post hole: 2-3 bags of 50lb concrete per post. For a 12" hole 36" deep: 3-4 bags. Fast-setting concrete is best — just pour dry and add water. Let cure 24-48 hours before attaching panels.
How long does a wood fence last?+
Cedar: 15-20 years. Pressure-treated pine: 10-15 years. Redwood: 20-25 years. Regular staining/sealing every 2-3 years significantly extends lifespan. Posts fail first — use steel post brackets or rot-resistant species. Vinyl and composite last 25-30+ years.
How to calculate linear feet for a fence?+
Measure the perimeter of the area to be fenced. For a rectangular yard: (length + width) × 2. Subtract any openings (house walls, existing structures). For example: 50ft × 30ft yard, one 30ft side against the house = (50 + 30) × 2 - 30 = 130 linear feet.