Metallbau-Ratgeber: Material, Vorschriften, Kosten

Freitragende Außentreppe aus Stahl mit senkrechtem Stabgeländer, feuerverzinkt und pulverbeschichtet in DB703, mit Gitterroststufen an einer weißen Fassade

Self-Supporting Steel Exterior Staircase: Why This Staircase Needs No Posts

Self-supporting without posts, hot-dip galvanized plus powder coating in DB703, treads made of steel grating: an exterior staircase project and the decisions behind it.

Cortenstahl

Corten Steel vs. Standard Structural Steel St37: The Difference That Decides Rust

Not all rust is created equal: Why genuine Corten steel lasts for decades, while cheap products made from untreated structural steel St37/S235 rust through – and how to spot the difference before y...

Fertigung

Powder coating in metal construction

Powder coatings, pretreatment, coating thicknesses and curing: how the duplex system of hot-dip galvanizing and powder coating performs outdoors.

Korrosionsschutz

Corrosion protection in metal construction: hot-dip galvanized vs. electrogalvanized

Hot-dip galvanized or electrogalvanized: how coating thickness, protection life and appearance differ, and which process suits your component.

What our customers are saying

4.9

based on 78 Google reviews

Google Bewertungen

Thomas Hollstein

2 weeks ago

★★★★★

Metallbau Kirchberger is a very reputable and competent company. I had a special request, was well advised, and perfectly served. Despite being a custom order, delivery was very fast! I would choose them again anytime!

Jürg Schweizer

2 weeks ago

★★★★★

Kirchberger Metall can be highly recommended. Smooth process from inquiry to delivery. The delivery to Switzerland was also organized and handled to our complete satisfaction. Telephone contact with Mr. Kirchberger always worked perfectly. We are happy with our bike shed. Thank you, we can order here with a clear conscience.

Aegidius Eckel

1 month ago

★★★★★

I am happy to give 5 stars for the perfect service: quote, order, delivery, goods, price, and communication were all excellent and flawless. I can warmly recommend Kirchberger GmbH to anyone interested.

A K

1 month ago

★★★★★

After a long search, we discovered this shop. Great service, very friendly and competent advice. Top quality. When purchasing from the online shop, the various options are clearly displayed, which makes selection and purchase easier. Payment also possible via PayPal. The delivery announcement by the forwarding agent worked well. The window grille was carefully packed and delivered. We will definitely be ordering more window grilles here. Purchase August 2025; UPDATE: We have become repeat customers and bought another window grille from Kirchberger in November - absolutely satisfied - fits together perfectly.

Karin Mense

2 weeks ago

★★★★★

Very fast delivery, the bike shed was very well packaged and could be set up immediately. Top

Only valid from 01.12.25 to 28.02.26!

Metal construction expertise & tips

Self-Supporting Steel Exterior Staircase: Why This Staircase Needs No Posts

Corten Steel vs. Standard Structural Steel St37: The Difference That Decides Rust

Powder coating in metal construction

Corrosion protection in metal construction: hot-dip galvanized vs. electrogalvanized

What our customers are saying

Certifications & Memberships