SKU: 33510156069

Armstrong Ceilings Silhouette 1/4-in Reveal 20-Pack 144-in Galvanized Steel Ceiling Grid Main Beam

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Description

Armstrong Ceilings Silhouette 1/4-in Reveal 20-Pack 144-in Galvanized Steel Ceiling Grid Main BeamSilhouette 1 4 in Reveal Ceiling Grid Main Beam, 20 Pack Intermediate duty main beams for suspended ceilings, featuring a 9 16 in bolt slot profile with a 1 4 in reveal. Made of hot dipped galvanized steel, each 144 in beam delivers durable performance and clean, modern lines. Key Features: Durable Construction: Hot dipped galvanized steel resists corrosion for long term reliability Clean Aesthetic: 9 16 in face with 1 4 in reveal and bolt slot

Silhouette 1/4-in Reveal Ceiling Grid Main Beam, 20-Pack

Intermediate-duty main beams for suspended ceilings, featuring a 9/16-in bolt slot profile with a 1/4-in reveal. Made of hot-dipped galvanized steel, each 144-in beam delivers durable performance and clean, modern lines.


Key Features:

  • Durable Construction: Hot-dipped galvanized steel resists corrosion for long-term reliability
  • Clean Aesthetic: 9/16-in face with 1/4-in reveal and bolt-slot profile for refined visual detail
  • Pack Efficiency: 20 pieces per carton; 240 ft total coverage with 144-in length per beam
  • Strong Performance: Intermediate-duty rating with mitered cross tee/main beam interface and coupling end detail
  • Seismic Considerations: Designed for Category C (check components for higher categories)

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Size / Face Profile 9/16"
Reveal 1/4"
Material Hot-dipped Galvanized Steel
Component Type Main Beam
Length 144"
Height 1-3/4"
Pieces per Carton 20
Feet per Carton 240 ft
Duty Rating Intermediate Duty
Cross Tee/Main Beam Interface Mitered
End Detail Coupling
Bolt Slot
Seismic Category C (note: not all components can be used in all seismic categories)
Hanger Spacing 4' - 13.10 plf; 5' - 6.61 plf

Frequently Asked Questions (FAQ):

Q: What is included in the carton?
A: Twenty 144-in main beams, providing a total of 240 linear feet.


Q: What profile does this grid use?
A: A 9/16-in bolt slot profile with a 1/4-in reveal for a crisp, modern look.


Q: What is the duty rating?
A: Intermediate duty, suitable for many commercial suspended ceiling applications.


Q: Is this product suitable for seismic installations?
A: It is listed for Seismic Category C; verify compatibility for higher categories as not all components can be used in all seismic categories.


Q: What material is the beam made from?
A: Hot-dipped galvanized steel for corrosion resistance.


Sleek Linear Definition for Elevated Ceilings

This grid system carves crisp, linear reveals that instantly sharpen and modernize a room. The 9/16-inch face with a subtle 1/4-inch shadow line creates a tailored rhythm overhead. Pair it with smooth, luminous tiles to accentuate the bolt-slot detail and draw the eye upward. It’s a refined essential that brings architectural polish to luxurious, contemporary spaces.


Choose Silhouette’s 1/4-in reveal main beams to achieve a clean, modern ceiling with dependable performance.

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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SKU: 33510156069

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Usman A. Ghani
Draper, US
★★★★★ 5
Must read for contemporary (and all) times.
Format: Paperback
This is a great book. I wonder why we were not taught this in the freshman year, or at least as a counterpoint to Econ101. It opens up the perspective to seeing culture, economics, politics, and technology in an integrated way with an emphasis on social choesion as a unifying fabric for humanity and, looking for the right rate of economic reform. Much of what we do as "development" can in fact be harmful in the long (also short) run if we are not sensitive to the premises Polanyi is alerting us to. This is not counterpoint or counterfactual thesis per se. I am a strong proponent of the market system and also realize that this system is subsumed and must be complementary to the larger, complex social system where things are interconnected. An effective policy can only result from the collective consideration of these together. Polanyi's writing style is clear, direct, and simple and, unlike deeply nomenclature-intense economics write-ups, this book is rather an easy read. When we prescribe/teach The Industrial Revolution as an essential or secondary reading, The Great Transformation should also be a companion reading.
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Reviewed in the United States on September 6, 2013
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Tanthallas
Birmingham, US
★★★★★ 5
Read!
Format: Paperback
Well, I was going to review this wonderful work. However, Robert Moore's review is so spot on that there is really no need to take up more space. Also I need a nap. Anyway, this book is truly fascinating. If you are at all interested in Political Economy, this is perhaps one of the most important books you will ever read. There is no school which has the authors name attached to it, nor is there a political movement dedicated to the realization of his ideas. In most cases this is because the author did not contribute original thought or make an adequate connection of his thought process with reality. In Polanyi's case, this is because the originality of his thought cuts through the specialized form in which science and social studies is presented today and cannot possible be claimed to belong to 'economics' any more than it can of 'sociology', 'anthropology', 'history', 'international relations', etc.. Read this book.
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Reviewed in the United States on July 3, 2009
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James Lockley
Port Orchard, US
★★★★★ 5
Understanding the Market vs Government influence
Format: Paperback
A must read.
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Reviewed in the United States on March 13, 2025
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Kelsey F.
Massapequa, US
★★★★★ 5
Great book!
Format: Paperback
We read this story as a class read aloud after we read the first Sprinkles and the Unicorn book. They noticed similar characters, and loved the story line. They’re begging me to buy the whole series of this and all the other books! I can’t read them fast enough.
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Reviewed in the United States on January 20, 2026
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Katharine Mullen
Cuba, US
★★★★★ 5
Great book!!
Format: Paperback
Kid loved the story! Read it the moment she got the book and 10 more times since then. Will be looking for more like this one!!
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Reviewed in the United States on February 9, 2026

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