Measure installed floor area
Include closets and doorways receiving laminate and separate rooms with different products or patterns.
Avoid subtracting tiny obstructions when the surrounding cuts still consume planks.
Plan cuts before choosing waste
Room shape, plank direction, stagger, transitions, and diagonal layouts affect offcuts.
A reusable offcut can reduce loss only when it satisfies the product layout rules.
Use package coverage
Divide adjusted area by the square-foot coverage stated for the chosen box.
Plank dimensions alone do not tell you how many planks are packed in a box.
Round upward
Partial boxes are generally not a procurement unit, so round the calculated box count up.
Keep spare-box decisions distinct from installation waste.
Check installation requirements
Floating laminate systems can specify underlayment, expansion space, subfloor flatness, moisture control, and plank staggering.
Use the current instructions for the selected product.