For a straight fence run, divide the total fence length by the bay width, round up to the next full bay, then add one post. A 10m run using 1.83m bays needs 6 bays and 7 posts.
Count the bays, then add one post
If you have six fence panels in one straight run, you need seven posts: one at each end and one between every panel. The same rule works for any straight run.
For a 10m fence using 1.83m bays: 10 ÷ 1.83 = 5.46. Round that up to 6 bays, then add one post. Total: 7 posts.
Use the actual panel or bay width
1.83m is a useful default for standard 6ft fence panels, but not every fence uses the same spacing. Measure the product you are installing before setting out the posts.
Corners and gates need separate planning
Use the calculator for each straight section. Corners may need a dedicated corner post, while gate openings normally need suitable gate posts. Do not treat a gate opening as a normal fence bay.
Choose the posts after you know the quantity
Browse the full Fence Posts range, or go directly to Timber Fence Posts or Concrete Fence Posts.
Setting posts into the ground? Check How Deep Should Fence Posts Be? before ordering the post length.
