Feather Edge

Estimate feather edge board quantity from wall dimensions, board cover, overlap, and a sensible waste allowance.

Inputs

Enter your wall and board details.

This estimates feather edge boards for coverage. Use it as a starting point for ordering, then adjust for trims and openings.

Wall width

Wall height

Board specification

Face cover

Use the visible cover after overlap. 100mm is a common starting point.

Board length

Choose a length that suits your height and trim plan.

Waste

Openings / complexity

Boards required

—

Including waste allowance

Wall area —

Effective cover per board —

Effective coverage —

How to measure

Use face cover, not nominal width.

Face cover is the visible width of each board once you have set the overlap.
If you do not know your overlap yet, start with 100mm cover and adjust once you choose a profile.
Increase waste for gates, windows, returns, and tricky corners.

Quick start

Measure wall width and height (add runs together if you have multiple walls).
Use face cover after overlap, not nominal width.
Confirm board length (e.g., 1.8m, 2.4m) based on your height and trim plan.
Set waste: 10% for simple rectangles, 15%+ for lots of cuts or returns.

Get better results

If you have openings, corners, or returns, increase waste and consider ordering a few spare boards for repairs.
Fixings and battens are not included here; treat this as a board-quantity starting point.
If you want an exact result, use the product’s listed cover width (after overlap) rather than a generic value.

Next step

Send your wall dimensions and preferred board profile and I can confirm the sensible order quantity.

Send an enquiry

Learn and verify

Browse guides Plain-English modules Open glossary Fast definitions Species reference sheets Behaviour and constraints

Assumptions

This estimates board quantity from wall area and effective cover. Real quantities depend on trims, corners, openings, defects, and fixing pattern. Use this as a starting point, not a guarantee.