Renovation and DIY: Costs, Permits, Tools and Viral Builds — 2026-09-20
The German Federal Court of Justice has ruled against Obi in a landmark trademark dispute over the color orange, marking a significant victory for competitors Hornbach and Globus. Meanwhile, construction material prices for copper, lumber, and switchgear have surged by over 10% year-over-year, pressuring renovation budgets globally. In Japan, home center giant Cainz is accelerating its urban expansion with new small-format renovation stores, while the global renovation market continues to grow toward a projected $518 billion in US homeowner spending.
Renovation and DIY: Costs, Permits, Tools and Viral Builds — 2026-09-20
Top developments
Obi loses "Orange" trademark battle against Hornbach and Globus
On September 17, 2026, the German Federal Court of Justice (BGH) ruled that hardware chain Obi cannot protect its specific shade of orange as a trademark. The court determined that the color lacks "distinctive character" and serves only as a general reference to hardware stores, ending a years-long legal dispute. This decision allows competitors like Hornbach and Globus to continue using similar tones without legal repercussions, reshaping brand identity strategies in the European DIY retail sector.

Construction material costs surge 10% year-over-year
According to data released on September 15, 2026, by Anirban Basu, chief economist at Associated Builders and Contractors, prices for key construction materials including copper, lumber, switchgear, and derivative metal products have increased by more than 10% since August 2025. This inflationary pressure is directly impacting renovation cost indices and squeezing contractor margins, forcing homeowners to re-evaluate project scopes and budgets.

Hornbach acquires six Hellweg locations post-insolvency
In a move consolidating the German DIY market, Hornbach has secured the rights to six former Hellweg hardware store locations following Hellweg's insolvency proceedings. The acquisition, announced around September 18, 2026, is part of a broader redistribution where Hornbach, Obi, and Bauhaus collectively took over 35 of Hellweg’s stores. Hornbach plans to open these new branches in spring 2027, aiming to capture market share lost by the insolvent competitor.
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Cainz launches Fall/Winter 2026 product line and urban expansion
Japanese home center chain Cainz unveiled its Fall/Winter 2026 collection on September 16, 2026, focusing on "relaxing interiors" and cost-reduction strategies to combat persistent inflation. The company introduced 84 new products, including system kitchens and gardening soil, developed in cooperation with suppliers to lower costs. Concurrently, Cainz is accelerating its strategy of opening smaller, urban-focused renovation specialty stores, with a new location recently opened in Machida Station, signaling a shift toward accessible, high-frequency DIY and repair services.

Local view
In Germany, the BGH ruling on Obi's orange trademark is being covered extensively by major outlets like Der Spiegel and t-online, which highlight the end of a multi-year legal saga between the country's largest hardware chains. Chip.de reports that Hornbach’s acquisition of Hellweg sites is seen as a strategic opportunity to expand its footprint quickly despite economic headwinds. In Japan, Sankei Shimbun and Diamond Retail highlight Cainz’s pivot toward "compact urban stores" as a response to changing consumer habits, emphasizing convenience and specialized renovation services over big-box bulk buying.
Context & numbers
- Global Market Size: The global home renovation market was valued at $2.05 trillion in 2025, with US homeowner improvement spending projected to reach $518 billion by the end of 2026.
- Material Inflation: Copper, lumber, and switchgear prices are up >10% YoY (as of Aug 2025 baseline).
- Remodeler Index: The U.S. Remodeler Index fell three points to 57 in Q2 2026, indicating tempered growth due to consumer uncertainty and high costs.
On the radar
- Hornbach Store Openings: The six acquired Hellweg locations are scheduled to open in Spring 2027; keep an eye on regional pricing adjustments as Hornbach integrates these assets.
- Cainz Urban Expansion: Monitor the performance of Cainz’s new Machida store as a pilot for their "small-format" renovation model, which may influence other Asian home centers.
- Battery Platform Updates: DeWalt has indicated summer 2026 for further battery platform changes, though no specific dates or prices were confirmed in recent updates; watch for Q4 announcements regarding the new tabless cell integration.
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