ASTM C1858/C1858M
Standard Practice for Design, Construction, and Material Requirements for Direct Hung Suspended T-bar Type Ceiling Systems Intended to Receive Gypsum Panel Products in Areas Subject to Earthquake Ground Motions
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About This Item
ASTM C1858/C1858M is the ASTM standard for direct hung suspended T-bar type ceiling systems intended to receive gypsum panel products in areas subject to earthquake ground motions. It provides a focused framework for design, construction, and material requirements where ceiling performance and structural behavior are important. For projects that need more than a basic suspended ceiling, this standard helps define a consistent technical basis for selecting, building, and evaluating the system.
What is ASTM C1858/C1858M?
ASTM C1858/C1858M is a practice standard that addresses the design, construction, and material requirements for a specific type of suspended ceiling assembly. Its technical context centers on direct hung T-bar type ceiling systems that support gypsum panel products, with attention to conditions where earthquake ground motions may affect performance. As an ASTM standard, it is commonly used as a reference for compliance, specification, and quality expectations in ceiling system applications.
Where is ASTM C1858/C1858M used?
This standard is used in the planning and installation of suspended ceiling systems that incorporate T-bar framing and gypsum panel products, especially where seismic considerations are part of the project requirements. It is relevant to contractors, designers, specifiers, and product evaluators working with ceiling assemblies that must be assembled and detailed in a controlled, code-aware way. ASTM C1858/C1858M is often consulted during procurement, review, and construction of these systems.
Why is ASTM C1858/C1858M important?
ASTM C1858/C1858M matters because it helps establish a consistent basis for building and assessing ceiling systems intended for seismic environments. Using the standard can support better specification writing, product comparison, and quality control by aligning materials and construction practices with a recognized technical document. For owners and project teams, it may also help reduce uncertainty when evaluating compliance and expected system performance.
- Direct hung suspended T-bar ceiling systems
- Gypsum panel product applications
- Seismic design and construction considerations
- Material and assembly requirements
- Specification and compliance reference
- Publication Date: 2024-05-10
- Publisher: ASTM
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