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USG Drywall Suspension System - Direct Mount

Engineered drywall ceiling system developed for efficient install, less labor. Designed for short plenum depths and faster perimeter connections.



The Drywall Suspension Direct Mount System is designed for quicker installation in shallow plenum or Wall-To-Wall applications. The Close Mount Attachment Clip (CMAC-1) provides strong deck support connection without the use of hanger wires in tight plenum applications like Hotels, Dormitories, and Multi-Family Units. The Drywall Grid Locking Channel (DGLC-12) connects tees to the perimeter with an engineered locking pocket. This Drywall Grid Locking Channel eliminates the laborious requirement of fastening perimeter tees into the wall angle or channel. When installing with USG Wall-To-Wall Main Tees and USG Sheetrock Brand EcoSmart 5/8" Panels, no hanger wires or fastening at the perimeter is required for spans up to 8'.

Main Features

  • Meets or Exceeds ASTM C635, C645, and A653
  • For Interior and Exterior installations
  • Dual orientated Close Mount Attachment Clip can be snipped for variable plenum height, no need to scrape the deck
  • CMAC offers various perforations for positive connection types like fasteners, nuts, and threaded rod
  • Drywall Grid Spanning Tees developed with cross tee clip at one end and flush at opposite for an out-of-the box system solution
  • Drywall Grid Locking Channel pockets spaced every 8" on center for fast alignment
  • Drywall Grid Locking Channel upper leg "indexes" over the tee bulb for secure fit
  • Each pocket offers lances at tee bulb and flange for secure, tight connection


  • Administrative Offices
  • Corridors and Hallways
  • Dormitories
  • Guest Rooms and Suites
  • Hospitality
  • Multi-Family Residential and Condos
  • Restrooms, Utility Rooms and Loading Docks

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 1.1 MB
Architectural Specification (English) DOCX 107.5 KB

Catalogs & Brochures

System Catalog (English) PDF 11.6 MB

Installation & Technical Manuals

Installation Guide (English) PDF 3.0 MB

SDS, Certifications & Reports

SDS (English) PDF 187.7 KB
SDS (Spanish) PDF 64.5 KB
Evaluation Reports (English) PDF 948.9 KB


Warranties (English) PDF 146.0 KB


HPD (English) PDF 72.1 KB

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