DIY

How Many Sheets of Plywood Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate the number of 4×8 plywood sheets for subflooring, sheathing, and projects.

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

In this article

Plywood Sheet Sizes and Coverage
Plywood Grades Explained
Thickness Selection Guide

Plattenmaße

Standard: 250 × 125 cm (3,125 m²). Für 30 m²: 30 ÷ 3,125 = 9,6 Platten + 10% = 11. Sperrholz Birke 18 mm: 25-40 €/Platte. OSB 18 mm: 15-25 €. MDF: 12-20 €. OSB ist 30-40% günstiger aber weniger feuchtigkeitsbeständig.

Verwendung

Möbelbau: Multiplex Birke (hochwertig). Unterkonstruktion: OSB (günstig). Regalböden: MDF oder Multiplex. Im Trockenbau: OSB als Beplankung der Ständerwand.

⚡ CalcWolf Insight

When buying plywood, inspect each sheet at the store. Plywood can warp, delaminate, or have voids in lower grades. Stand the sheet on edge — it should be straight with no twist. Check edges for delamination (separation of layers). This 30-second inspection prevents project headaches.

Frequently asked questions

Wie viele Platten für 20 m²?▾

20 ÷ 3,125 = 7 + 10% = 8 Platten.

OSB oder Sperrholz?▾

OSB: günstig, gut für verdeckte Anwendungen. Sperrholz: stärker, optisch besser.

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Kevin Glover · @gloverbuilds

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 →