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How Much Does a Deck Cost to Build?

Calculate the total cost to build a deck by material and size. Pressure-treated, composite, or hardwood — with railing, stairs, and labor.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Custos no Brasil

Deck de madeira (cumaru, ipê): R$300-600/m² instalado. Pinus tratado: R$150-300/m². Deck composite (WPC): R$250-500/m². Um deck de 20 m² em cumaru: R$6.000-12.000. O composite custa similar à madeira nobre mas não precisa de manutenção.

Manutenção

Madeira nobre (ipê, cumaru): lixar e aplicar stain/óleo a cada 1-2 anos. Pinus: tratar anualmente. Composite: zero manutenção por 20-25 anos. Em 10 anos, o custo total do composite é geralmente menor que madeira por causa da manutenção.

⚡ CalcWolf Insight

Remodeling Magazine's 2025 Cost vs. Value Report shows that a wood deck addition recoups 71.3% of its cost at resale — one of the highest ROIs of any exterior improvement, behind only garage door replacement (194%) and manufactured stone veneer (89%).

Frequently asked questions
Quanto para deck de 20 m²?
Cumaru: R$6.000-12.000. Pinus tratado: R$3.000-6.000. Composite: R$5.000-10.000.
Madeira ou composite?
Madeira: aparência natural, precisa de manutenção. Composite: zero manutenção, 20+ anos. Custo total similar em 7-10 anos.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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