Premium Ultra Line 42mm Ceiling Suspension Grid

High-performance T-bar ceiling system with superior load capacity and fire resistance

Ceiling suspension grid (Ultra line 42mm)

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Ceiling suspension grid (Ultra line)
Ceiling suspension grid (Ultra 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 C640 to tell its good loading capacity.

Introduction

Our ceiling suspension grids, ultra line type is made of high quality pre-painted G.I., and tt is given to ensure that the system is manufactured to a very high quality level.

Types of combination

1200 x 600mm SIZES
DOUGLAS ceiling suspension grids comprises main runners installed at not more than 1200mm centers, securely fixed by pre-straightened suspension wire. The wire shall not more than 1500mm from the main runner splices, or expansion joints, and the maximum distance from the wire to the perimeter of the ceiling shall not exceed 450mm and otherwise at 1200mm centers.
Also, the main runners splices are to be staggered and not less than 450mm from the perimeter. Spanning between main tees are 1200mm cross tees at 600mm centers.

600 x 600mm SIZES
Same mentioned above, only add: 600mm cross tees spanning between 1200mm cross tees 600 module.

Ceiling suspension grid

System consists of

G.I. : 0.40mm / Main Runner: 42mm (height)

ItemSize in metricSize in imperialG.I. thicknessDimension
Main Runner 3.6M (3600mm)12FT (3660mm)0.40mm15x42mm
Cross Tee1.2M (1200mm)4FT (1220mm)0.40mm15x42mm
Cross Tee0.6M (600mm)2FT (610mm)0.40mm 15x42mm
Wall Angle  3.6M (3600mm)0.40mm 15x20mm
Wall Angle3.0M (3000mm)0.40mm 15x20mm

Advantages

  • It is economical, easy to install, using less labor to complete the installation at minimum time as compared with conventional extruded aluminum tee system.
  • Interchangeability of main and cross tees between systems, promotes lower inventory requirements and greater field flexibility.
  • The straight entry locking feature of the section allows the system to be installed easily within close proximity of the overheads.
  • The system promotes complete designs flexibility and it is capable of sustaining of loads normally designed into suspended tee system (refer to load table)
  • Overlap type of cross tee provide complete flush joint, eliminating gaps between main runner and cross tees and ensure rigidity at fixtures.
  • In line cross tees provide true double-lock action.
Ceiling suspension grid

Fire expansion joint within each length of main runner.
Ceiling suspension grid
Before Fire

Effect after exposure to fire conditions.
Ceiling suspension grid
After Fire

Ceiling suspension grid Assembly System

Installation Steps

  • Step 1: Measuring and planning: Determine the lines for main runners and cross tees in such a way that tiles about the wall are at least half a tile (300mm)
  • Step 2: Mark the desired ceiling height: Measure and mark the walls at all corners above the installation level. Snap a chalk line and test for level.
  • Step 3: Inserting a nail between the wall and the wall angle at marked location serves as a good anchor for this purpose. Check to be sure the cross tee string is at 90°
  • Step 4: Attach the main runners to the hangers
  • Step 5: Install cross tees, assuring that they are adequately connected to main runners
  • Step 6: Lay in panels, beginning at one corner and completing row by row.

Assembly
Each tee grids must be fitted always in the left position (Grey Color) of the slot. Hear the sound "Click"!

Disassembly
Need no tools!
Push, through the left thumb.
Then the tee's edge and simultaneously we pull the tee with our right palm.

Main Runners Disassembly
The disassembly must be done by a screwdriver with a slim tip.

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Why do professional installers prefer DOUGLAS Ultra Line for commercial ceiling projects?

Ceiling system installers consistently choose DOUGLAS Ultra Line 42mm grids because they significantly reduce installation time and labor costs compared to conventional systems. The innovative straight-entry locking feature allows for easy installation in tight overhead spaces, while the in-line cross tees provide true double-lock action for exceptional stability. Our simple assembly/disassembly design requires minimal tools, with audible "click" confirmation ensuring proper connections. This installer-friendly system reduces project timelines and increases efficiency, allowing contractors to complete more projects with confidence in the final quality.

Designed for professional installation, the Ultra Line system offers significant advantages over conventional ceiling solutions, including economic efficiency, reduced labor requirements, and remarkable design flexibility. The straight-entry locking mechanism facilitates installation in tight overhead spaces, while the overlap-type cross tee design eliminates gaps between components for a flush, seamless appearance. Our system accommodates both 1200x600mm and 600x600mm configurations with built-in fire expansion joints for enhanced safety. With 26 years of industry expertise, DOUGLAS delivers ceiling suspension solutions that combine aesthetic appeal with superior performance for commercial and institutional applications worldwide.

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