Professional-Grade Black Line Ceiling Suspension Grid System

DOUGLAS Black Line delivers engineered ceiling grid solutions with hot-dipped galvanized steel construction and proven ASTM C639 load-bearing performance for reliable commercial installations.

Ceiling suspension grid (Black line)

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Black line

Ceiling suspension grid (Black line)
Ceiling suspension grid (Black line)

DOUGLAS ceiling suspension grids are double web cold-rolled sections, manufactured from hot-dipped galvanized steel, conforms to JIS G3302 SGCC. The tees section is with pre-painted capped. We use only the high quality level galvanized steel also pre-painted galvanized steel supporting with high performance production equipment, to ensure the accurate sizes and locking quality.

The Main Runner is slotted for cross tees at 150mm or 6" centers to give maximum flexibility in the ceiling lay out.

We are holding the 3rd party issued test report which was tested under ASTM C639 to tell its good loading capacity.

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How can you ensure your commercial ceiling installations meet structural load requirements and industry standards?

DOUGLAS Black Line suspension grids are engineered with hot-dipped galvanized steel and backed by third-party ASTM C639 test reports confirming superior loading capacity. Our pre-painted capped tees and slotted main runners deliver the precision and durability your commercial projects demand, reducing installation time while ensuring code compliance and lasting performance.

With 30 years of international market presence, DOUGLAS delivers proven ceiling suspension solutions backed by third-party ASTM C639 testing documentation confirming excellent loading capacity. The Black Line system's precision engineering and durable construction make it the ideal choice for commercial contractors, builders, and installation professionals seeking reliable ceiling systems that improve project outcomes and deliver long-term building value. Contact DOUGLAS today to specify Black Line suspension grids for your next commercial ceiling project.

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