Formula
Floor to buy is the measured area times one plus the cutting allowance.
Packs are that area divided by the coverage of one pack, rounded up.
Underlay matches the measured area, without the cutting allowance.
Worked example
14 m² with 10% for cuts is 15.40 m². At 2.22 m² a pack that is 6.9 packs, rounded up to 7, 63 planks.
Assumptions
10% suits a straight lay in a plain room. Herringbone, diagonal lays and many doorways take more.
Expansion gaps at the walls are not taken off the area; the skirting or beading covers them.
Trims, thresholds and beading are not counted. Some hybrid packs already have underlay attached.
Checked
Checked 11 November 2026. Wickes lists 8 mm laminate at 2.22 m² and 9 planks a pack. Bunnings lists Floor Select 6 mm hybrid at 2.2 m² and 10 planks a pack, with underlay already attached.