Why are some posts orange?

They sit too close to the tree in the scene. Move the gate or change spacing so the footing misses the trunk.

What is a leftover bay?

A gap between posts that is much shorter than your panel width. It forces an awkward cut and is easy to miss in a length-only calculator.

Does the fence follow the slope?

Posts step with the fall and stay plumb. The palings sit on that stepped line. Raked rails are not modelled yet.

Can I plan a corner or an L?

This version is a single run plus a house wall. Plan each leg separately and add a shared corner post.

Are concrete volumes included?

No. You get post counts. Bag mix depends on hole size and soil, which you should set on site.

Is this legal-height advice?

No. Height and setback rules differ by council and by whether the fence faces a street. Check local rules.

Fence Planner

A length divided by spacing does not tell you where the gate lands or what happens to the last panel. Set the run, drag a gate post, and step the line down a fall.

Inspect mode labels every bay. Orange posts sit too close to the tree. Treat post and paling counts as a shopping list, then check boundary rules on site.

Walk the boundary

Place a gate on a 3D run, step posts down a slope, and watch leftover bays. Orange posts sit too close to the tree. Drag a gate post to slide the opening.

Run length (m)Fence height (m)Post spacing (m)Gate width (m)Gate centre (m)Fall along the run (m)Style

Posts8

Gate posts2

Palings / slats81

Rails (planning)18

Bays6

Leftover bay0.48 m

One bay is only 0.48 m, short against a 2.40 m panel. Move the gate or change post spacing so the last opening is not a sliver.

At least one post sits on the tree. Slide the gate or change spacing so footings miss the trunk.

About Fence Planner

What this tool does

The Fence Planner places posts, a gate, and palings or panels on a 3D boundary. Posts step down a fall so they stay plumb while the ground drops.

Inspect mode labels each bay. A leftover opening shorter than about half a panel is flagged. Posts that sit in the tree turn orange.

Simple post calculators ignore gates, slope, and obstacles. This tool is for walking the run before you dig holes.

Counts are a shopping list. Boundary height, good-neighbour rules, and concrete still need a site check.

How to use it

1Set run length, fence height, and post spacing.
2Set gate width and drag a gate post, or type the gate centre.
3Add fall along the run if the yard slopes.
4Choose palings, panels, or horizontal slats.
5Use Street view to see the face from the yard.
6Switch to Inspect bays to read leftover widths.
7Move the gate if a post lands on the tree or the last bay is a sliver.

Practical tips

Put the gate on the path, then let posts fall on even spacing either side.
A leftover bay looks as cheap as a sliver tile. Change spacing before you order panels.
Posts stay vertical on a slope. Rails can step or rack. This model steps the posts.
Orange means the footing fights the tree. Shift the gate rather than cutting roots if you can.

Frequently asked questions

Why are some posts orange?: They sit too close to the tree in the scene. Move the gate or change spacing so the footing misses the trunk.
What is a leftover bay?: A gap between posts that is much shorter than your panel width. It forces an awkward cut and is easy to miss in a length-only calculator.
Does the fence follow the slope?: Posts step with the fall and stay plumb. The palings sit on that stepped line. Raked rails are not modelled yet.
Can I plan a corner or an L?: This version is a single run plus a house wall. Plan each leg separately and add a shared corner post.
Are concrete volumes included?: No. You get post counts. Bag mix depends on hole size and soil, which you should set on site.
Is this legal-height advice?: No. Height and setback rules differ by council and by whether the fence faces a street. Check local rules.

What this tool does

The Fence Planner places posts, a gate, and palings or panels on a 3D boundary. Posts step down a fall so they stay plumb while the ground drops.

Inspect mode labels each bay. A leftover opening shorter than about half a panel is flagged. Posts that sit in the tree turn orange.

Simple post calculators ignore gates, slope, and obstacles. This tool is for walking the run before you dig holes.

Counts are a shopping list. Boundary height, good-neighbour rules, and concrete still need a site check.

How to use it

1Set run length, fence height, and post spacing.
2Set gate width and drag a gate post, or type the gate centre.
3Add fall along the run if the yard slopes.
4Choose palings, panels, or horizontal slats.
5Use Street view to see the face from the yard.
6Switch to Inspect bays to read leftover widths.
7Move the gate if a post lands on the tree or the last bay is a sliver.

Practical tips

Put the gate on the path, then let posts fall on even spacing either side.
A leftover bay looks as cheap as a sliver tile. Change spacing before you order panels.
Posts stay vertical on a slope. Rails can step or rack. This model steps the posts.
Orange means the footing fights the tree. Shift the gate rather than cutting roots if you can.

Frequently asked questions

Why are some posts orange?: They sit too close to the tree in the scene. Move the gate or change spacing so the footing misses the trunk.
What is a leftover bay?: A gap between posts that is much shorter than your panel width. It forces an awkward cut and is easy to miss in a length-only calculator.
Does the fence follow the slope?: Posts step with the fall and stay plumb. The palings sit on that stepped line. Raked rails are not modelled yet.
Can I plan a corner or an L?: This version is a single run plus a house wall. Plan each leg separately and add a shared corner post.
Are concrete volumes included?: No. You get post counts. Bag mix depends on hole size and soil, which you should set on site.
Is this legal-height advice?: No. Height and setback rules differ by council and by whether the fence faces a street. Check local rules.

Fence Planner

About Fence Planner

What this tool does

How to use it

Practical tips

Frequently asked questions

More reading

Fence Planner

About Fence Planner

What this tool does

How to use it

Practical tips

Frequently asked questions

More reading