Choose your board style, enter your fence run and height, and get the exact boards and posts per bay — added to your basket in one click.
Over 1.8m high needs an extra board row per bay — see the fencing guide.
How many fence boards per bay?
Composite fence boards slot horizontally between posts to make a 1.8m bay. A standard 1.8m-high bay takes 12 standard (15cm) boards (2 packs) or 6 wide (30cm) boards (1 pack). Divide your run by 1.8m for the number of bays.
| Fence run | Bays | Posts |
|---|---|---|
| 5.4m | 3 | 4 |
| 10.8m | 6 | 7 |
| 18m | 10 | 11 |
What else you will need
You need one post between each bay plus one at each end (posts come in packs of 4), and either concrete or a post fitting kit to fix them. Colour-matched trims and lattice toppers finish the top.
Common questions
How many fence boards do I need per bay?
12 standard (15cm) boards or 6 wide (30cm) boards per 1.8m bay.
Do I need a post for every bay?
Yes — one between each bay plus one at each end. A 3-bay run needs 4 posts.
How do I work out how many bays?
Divide your total length by 1.8m and round up. A 12m run is 7 bays.
Read the composite fencing buyer’s guide for the full method.
