Laminate Flooring Calculator — Packs, Underlay & Beading

Our laminate flooring calculator works by dividing your room area (plus wastage) by the pack size to determine how many packs you need. We also calculate underlay rolls and beading/scotia lengths.

For an L-shaped room, press Add section and enter each rectangle as its own section. Packs and underlay rolls are rounded up per section and then added together, so the estimate covers the extra cuts where the sections meet and never under-orders. Use three sections for a T or U shape.

The formula

Packs needed = Room area × (1 + Wastage %) ÷ Pack size (m²)

Underlay rolls = Room area ÷ 15 m² per roll

Beading lengths = Room perimeter ÷ 2.4 m (rounded up; perimeter = 2 × (Length + Width))

Doorway thresholds are usually finished with a door bar rather than scotia, so this is a safe over-estimate. Some run will be covered by skirting on walls where you do not use beading.

Standard UK sizes

• Laminate packs: Typically 2.0-2.5 m² per pack (varies by brand)
• Underlay: Standard roll covers 15 m² (10m × 1.5m or 15m × 1m)
• Beading/scotia: Sold in 2.4m lengths

Pack sizes vary between brands — common UK brands like Quick-Step, Elka, Krono and Balterio all use slightly different pack coverages. Check the pack size on the product page before ordering. We recommend 10% wastage for standard rectangular rooms and 15% for rooms with many cuts or complex shapes.