|
|
|
|
| Profile |
 |
|
*Per ASTM C635, a main tee is supported at 48" o.c. and subjected to the load for its duty classification; the tee may not deflect more than 0.133", or L/360, where L equals the unsupported span.
|
 New Donn Seismic Solutions
Because Donn Heavy Duty and Intermediate Duty main tees use the strongest-gauge steel and the most robust connection clips and splices -
producing the tightest systems available with the greatest lateral and torsional stiffness - we can offer systems in both classes that
meet IBC seismic design categories D, E, and F, including designs with 7/8-in. wall angle.
|
 Fire Resistance
Many Donn systems are designed for use in fire-rated applications, with available fire-notched main tees and heavier-gauge cross tees. USG also offers the industry's only all-fire-rated suspension system,
DX/DXL. This system includes DX24 and DX26 main tees and DX216 and DX424 cross tees, which may be used in both Class A and fire-rated installations. These versatile components help our customers by reducing their inventories,
streamlining the planning and ordering process, and simplifying the product line.
|
