Calculadora de Piso Laminado

Última atualização: 2026-06-23

Use a Calculadora de Piso Laminado para obter resultados precisos. Insira os valores abaixo.
Dados
Resultado
Insira os valores e pressione Calcular
Common Sizes — Click to Fill
Comprimento do quarto (m) Largura do quarto (m) Comprimento da tábua (m) Largura da tábua (cm) Tábuas por caixa (pcs)
3 m 3 m 1.26 m 0.192 cm 8 pcs
4 m 3.5 m 1.26 m 0.192 cm 8 pcs
5 m 4 m 1.26 m 0.192 cm 8 pcs
6 m 4.5 m 1.26 m 0.192 cm 8 pcs
8 m 5 m 1.85 m 0.24 cm 6 pcs
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O que é o Laminate Flooring Calculator?

Laminate flooring is sold in boxes containing a set number of planks — and once you start a job, finding an extra box from the same batch to match colour and texture is never guaranteed. This calculator tells you exactly how many planks and boxes you need for your room, applying the standard 10% waste factor for cuts, offcuts at walls, and future replacements.

You may also find the Carpet Calculator, Paver Calculator, and Grout Calculator useful.

Quem usa esta calculadora?

This tool is used by DIY homeowners laying laminate, flooring contractors quoting jobs, and interior designers specifying materials.

Como usar the Laminate Flooring Calculator

  1. Insira Room length.
  2. Insira Room width.
  3. Insira Plank length.
  4. Insira Plank width.
  5. Insira Planks per box.
  6. Clique em Calcular para ver os resultados instantaneamente.

Fórmula

The calculator uses the following formula:

Room area = Length × Width; Planks = ceil(area × 1.1 ÷ (plank_L × plank_W)); Boxes = ceil(planks ÷ planks_per_box)

Exemplo de cálculo

A 4 m × 3.5 m room using planks that are 1.2 m × 19 cm (8 planks/box) requires approximately 22 boxes with 10% waste included.

Cálculo passo a passo

  1. Room area: 5 m × 4 m = 20.00 m²
  2. Plank area: 1.26 m × 0.192 m = 0.242 m²
  3. Planks needed (with 10% waste): ceil(20 × 1.10 ÷ 0.242) = 92 planks
  4. Boxes: ceil(92 ÷ 8) = 12 boxes

Erros comuns a evitar

  • Not adding 10% waste for cuts, especially in rooms with diagonal layouts (+15%)
  • Measuring closets separately — include them in the total area
  • Forgetting the underlay/foam layer adds 3-5 mm — may affect door clearance
Pro Tip: Acclimate laminate planks in the room for 48–72 hours before installation. This lets them expand or contract to the room's humidity and prevents buckling or gaps after laying.

Perguntas frequentes

Which direction should I lay laminate flooring?
Laying planks parallel to the longest wall makes rooms look larger. Running them toward the main light source (a window) also looks most natural. Avoid running perpendicular to the main view.

What expansion gap do I need?
Leave a 10–12 mm expansion gap around all walls, door frames, and fixed objects. This allows the floor to expand and contract with temperature and humidity changes. Cover the gap with skirting board.

Why add 10% waste?
Cuts at walls, angles, and door frames produce off-cuts that are unusable. The last row often needs ripping to width. 10% is standard; add 15% for diagonal installation which creates more waste.

Can laminate flooring be laid over existing tiles or vinyl?
Yes, if the existing floor is level (< 3 mm variation over 1.8 m), firm, and dry. Lay underlay on top. Very uneven floors must be levelled first with self-levelling compound.

How do I calculate for an L-shaped room?
Split the L-shape into two rectangles, calculate each separately, then add the totals. Don't just calculate the bounding rectangle — you'll significantly overestimate material.

Escrito e revisado pela equipe editorial do CalcToWork. Última atualização: 2026-06-23.

calcto.work — Calculated on 2026-06-23