DIY

How Much Crown Molding Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate linear feet of crown molding plus inside and outside corner pieces. Includes waste factor for mitered joints.

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

In this article

Measuring for Crown Molding
Inside Corners: Cope or Miter?
Installation Tips

Berechnung

Laufmeter = Raumumfang + 10% Verschnitt. Raum 4×5 m: 18 m + 1,8 = 20 m. In Deutschland beliebt: Styropor/Polystyrol (2-8 €/m), Polyurethan (8-25 €/m), Gips (15-40 €/m). Styroporleisten sind mit Abstand am günstigsten und einfachsten — gestrichen kaum von Gips zu unterscheiden.

Montage

Styropor: Montagekleber, Cuttermesser. Gips: Kleber + Schrauben. Der Gehrungsschnitt in den Ecken ist die größte Herausforderung — eine Gehrungslade (15-30 €) ist unverzichtbar.

⚡ CalcWolf Insight

Use construction adhesive (Liquid Nails) in addition to nails when installing crown molding. The adhesive holds the molding tight to the wall and ceiling while the nails dry, preventing gaps. It also reduces the number of nails needed, meaning fewer holes to fill.

Frequently asked questions

Wie viel für 4×5 m Raum?▾

20 m. Styropor: 40-160 €. Polyurethan: 160-500 €.

Styropor oder Gips?▾

Styropor: 2-8 €/m, einfach, gestrichen kaum zu unterscheiden. Gips: Premiumlook, 15-40 €/m.

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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 →