construction calculator

Fence Calculator

Estimate fence panels and posts for a yard or enclosure project. Good for early planning before gates, corners, slope, and site details are finalized.

Important Use Notice

Planning calculator only. Do not rely on this page alone for structural design, permitting, code compliance, engineering signoff, procurement quantities, or contractual commitments.

Context

Panels = total length / panel width (round up). Posts = length / spacing + 1 (corner posts).

Estimate

Enter job values, review the estimate, then use the decision hints before ordering or quoting.

Estimate Results

Enter values to see the result.

Next Step

Installing a new backyard privacy fence
Replacing old fence sections
Planning a dog run or garden enclosure

Check

Forgetting corner and gate posts
Not adding extra for slope or gates

Reference

lengthpanelpanelsposts
10081314
6061011

Example

100 ft fence, 8 ft panels → 13 panels + 14 posts
60 ft fence, 6 ft panels → 10 panels + 11 posts

Formula

Panels = Length / Panel Width (round up)

Posts = Length / Post Spacing + 1 (includes corners).

Add 1 extra post per gate

Next Step

System note: validate this estimate against local code and supplier requirements before ordering.

FAQ

How many posts do I really need?

Always +1 for the starting corner. Add extras for gates.

What spacing is standard?

6–8 ft between posts for most wood/privacy fences.