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Fence Calculator

Work out everything you need for a complete concrete-post fence — panels, posts, gravel boards and post mix — then add it straight to your basket.

Enter the total length of your fence run and the finished height you want, then choose your panel style, post type and gravel boards.

The calculator works out the panels, posts, gravel boards and post mix you need — for example, a 6ft fence with a 12″ gravel board uses 5ft panels and 8ft posts (around 2ft of post set into the ground).

1Fence run details

Start with the overall length of the fence and the finished height you want — we'll work out the right panel, gravel board and post length.

Each panel is 6ft (1.83m) wide.
Including the gravel board.
We recommend 2 bags per post. Other options follow our Post Mix coverage guide.

2Panel style

Choose the fence panel you want to use.

3Post type

Concrete posts won't rot, warp or need treating — and panels simply slot in.

4Gravel boards

A concrete gravel board under each panel keeps the timber off the ground.

Gravel board height — 12″ gives more clearance on sloping or uneven ground.

Recommendation only: please check site measurements, levels, ground conditions, corners, gates and installation requirements before ordering. Our team is happy to check your list — call 01206 584 444.