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Item: M7-20HRC

Donn® Brand Acoustical Suspension System Moldings

Use for standard ceiling perimeters.

Overview

Donn® Brand Acoustical Suspension System Moldings include:
Angle Moldings: Basic molding used at the perimeter of a ceiling for economical installations.
Shadowline Moldings: Used for creating reveals at ceiling perimeters for an elegant visual, matches well with reveal edge tiles.
Channel Moldings: "U" shaped channels used at ceiling perimeters with tile hold down clips. Available with closed foam cell gaskets for clean room applications.
F Moldings: Used to create ceiling "breaks" at facias or similar ceiling elevation changes.

Main Features

Donn® Brand Acoustical Suspension System Angle Moldings include:

  • Angle Moldings: used at the perimeter of a ceiling,
  • Shadowline Moldings: useful for creating reveals at ceiling perimeters, while hiding imperfections in drywall partitions and bulkheads,
  • US Channel Moldings: "U" shaped channels used at ceiling perimeters that can be used with wall spring clips to hold down perimeter ceiling tiles,
  • F Moldings: used tocreate ceiling "breaks" for soffits and changes in elevation.

Specifications

Data Sheet PDF 3.1 MB

Performance

  • Mold & Mildew Resistance
    Contains a broad-spectrum antimicrobial additive on the face and back of the panel that provides resistance against the growth of mold and mildew. Includes sag-resistance performance.
    No
  • ASTM E84
  • ASTM Classification ASTM C635; ASTM C636; ASTM E84

Documents & Files

Data Sheets & Specifications

Data Sheet (English) PDF 3.1 MB

White Papers

Sell Sheet (English) PDF 2.5 MB

Catalogs & Brochures

System Catalog (English) PDF 251.8 KB

Installation & Technical Manuals

Installation Guide (English) PDF 677.1 KB
Technical Guide (English) PDF 1.4 MB

Warranty

Warranties (English) PDF 611.0 KB

Ask a question

Our customer support team will get back to you within 48 hours

Question Guidlines

  • Questions should relate to this product specifically.
  • For help with pricing, availability, or delivery, please call 800.874.4968 (Monday–Friday, 7am–6pm Central)
  • All questions and answers follow USG’s Terms & Conditions.
  • Your question and USG’s answer may be posted to this page in the future, but none of your personal info will be included.

q & a

  • How is the load test data collected for ceiling grid?

    Load data and spans are based on simple span tests in accordance with ASTM C635, with a deflection limitation of L/360.

  • How do you remove cross tees without a tool?

    To remove a cross tee, push up on the main tee with your thumbs (where the cross tee is connected) and rotate it until the cross tee pops up and out of the slot.

  • What are the best grids to use in an area that is accessible to moisture?

    The best grids to use in an area accessible to moisture are the Donn® AX™ Acoustical Suspension System or the Donn® ZXLA™ Acoustical Suspension System.

  • How much force is required to insert a cross tee with a quick release clip?

    It takes 12-14 pounds of force to install a cross tee.

  • What is the standard warranty of grid?

  • What gauge hanger wire is needed to install grid?

    For residential installation 18-gauge wire is required. For commercial installation 12-gauge wire is required.

  • What is the warranty for a system, that uses USG tile and grid together?

    There is a lifetime warranty on any ceiling system that is used in conjunction with our tile and grid. All grid is lifetime when used with USG tile, however not all tile is lifetime when used with USG grid. See complete warranty for details.

  • How is the spacing of wire hangers determined for fire-rated assemblies?

    All systems must be installed and tested in compliance with ASTM C636.

  • When installing grid, what is the minimum clearance needed from the overhead structure?

    Minimum clearance is 3", which allows ceiling tiles to be inserted and removed freely.

  • How do you take main tees apart without a tool?

    Facing the main tee splice place your left hand near the left side of the splice and right hand near the right side of the splice. Using a shearing motion, push with your left hand and pull with your right hand. This disconnects the main tee splice. Be sure to straighten the end tabs before attempting to reconnect.

  • Which grid is the best grid to use in a Clean Room environment?

    USG Donn® Brand CE™ Acoustical Suspension System is the best grid for a Clean Room environment.

  • Have a question?

    Let us do research and get back to you (usually within 48 hours).

    Ask USG
  • Need help right away?

    Call our Technical Support team at 800-874-4968 (Monday-Friday, 7am-6pm Central).

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