Updated
March 27, 2026
Reviewed against the current calculator logic, structured content, and internal linking used on BuildCostLab.
Fence run tool
Fence Calculator
Estimate fence panels, posts, concrete, and rough cost for straight fence runs.
Methodology
Planning-first estimate
Use this calculator to build a rough material estimate, then confirm it against product coverage data, site conditions, and supplier pack sizes before you order.
Trust
How we publish
See the calculator methodology and editorial policy for the standards behind these pages.
Assumptions
Assumes a straight run with repeating panel widths and standard posts, plus a simple concrete allowance per post.
Common mistakes
Common misses include forgetting end conditions, misreading panel width, and overlooking how corners and gates alter the pattern.
Best use cases
Useful for domestic boundary replacements, garden screening runs, and early budgeting before detailed choices are fixed.
How to get a better estimate
Measure carefully, apply realistic waste, and sense-check the result against how the product is actually sold.
Before you buy
Round to whole buying units and compare product coverage before buying solely on sticker price.
UK and US note
Unit wording and supplier pack conventions differ between markets, but the estimating logic still starts with geometry, waste, and whole-unit ordering.
Final buying check
Before placing an order, compare product coverage, pack size, delivery cost, and whether buying one extra unit is safer than risking a shortfall.
Explore this topic cluster
Open the full Fence Estimating hub to move from quick estimate to deeper guidance.
How many fence panels do I need?
Divide the total run by the panel width, round appropriately, and then check posts and end conditions.
Should fence estimates include concrete?
Usually yes, because post concrete is a material cost many quick fence estimates forget.