SKU: 46375532968

Armstrong Ceilings Prelude ID White 20-Pack 144-in Galvanized Steel Ceiling Grid Main Beam

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Description

Armstrong Ceilings Prelude ID White 20-Pack 144-in Galvanized Steel Ceiling Grid Main BeamPrelude 144 in Heavy Duty Ceiling Grid Main Beam (20 pack) Install suspended ceilings with Armstrongs Prelude heavy duty main beam. Each 144 inch beam is made from hot dipped galvanized steel with a 15 16 inch exposed tee and engineered SUPERLOCK clip for fast, secure alignment in commercial or residential spaces. Key Features: Heavy Duty Construction: Hot dipped galvanized steel resists corrosion for long term durability Secure SUPERLOCK Clip:

Prelude 144-in Heavy-Duty Ceiling Grid Main Beam (20-pack)

Install suspended ceilings with Armstrong’s Prelude heavy-duty main beam. Each 144-inch beam is made from hot-dipped galvanized steel with a 15/16-inch exposed tee and engineered SUPERLOCK clip for fast, secure alignment in commercial or residential spaces.


Key Features:

  • Heavy-Duty Construction: Hot-dipped galvanized steel resists corrosion for long-term durability
  • Secure SUPERLOCK Clip: Audible click confirms fast, accurate alignment during installation
  • 15/16-in Exposed Tee: Compatible with PRELUDE 15/16-in grid systems and 24x24 or 24x48 panels
  • Carton Efficiency: 20-piece pack streamlines medium to large projects
  • Code-Compliant: Designed to meet building codes for residential and non-residential applications

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Duty Rating Heavy Duty
Material Hot-dipped galvanized steel
Package Quantity 20 pieces
Beam Length 144 in
Exposed Tee Width 15/16 in
Suspension Type Main Beam
Clip Type SUPERLOCK
Disinfectable Fog, spray, and wipe
Seismic Rating DEF
Rout/Slot Spacing 6 in
Hanger Spacing (4 ft) 16.73 plf
Hanger Spacing (5 ft) 8.73 plf
Sustainable Yes
Color White (also available in multiple colors)

Frequently Asked Questions (FAQ):

Q: Can I install this myself?
A: Yes, if you have experience with suspended ceilings; follow Armstrong’s installation instructions and video.


Q: Do materials need to acclimate before install?
A: Yes. Unpack and allow 24 hours of acclimation in the installation environment.


Q: What overhead clearance is required?
A: A minimum of 3 inches is recommended for grid installation.


Q: What components are included in a typical grid system?
A: Main beams, wall moldings, cross tees, and hanger wires (sold separately).


Q: Is the grid disinfectable?
A: Yes. It is fog, spray, and wipe disinfectable as specified by Armstrong.


Streamlined Structure, Modern Polish

Prelude’s crisp 15/16-inch lines bring tailored rhythm to a room, framing ceiling panels with refined precision. The galvanized steel beam’s SUPERLOCK detail is a quiet hero—clean seams and confident alignment. Pair it with sleek white acoustical tiles and linear lighting to elevate offices or studios with effortless order. This main beam is a subtle essential for spaces that demand luxury and performance in equal measure.


Upgrade your ceiling project with Prelude’s heavy-duty, easy-align main beam—order the 20-pack today for fast, professional results.

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46375532968

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4.4 ★★★★★
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K
Verified Purchase
K. Davis
Lowell, US
★★★★★ 5
Works for foot psoraisis
Size: 2 pairs black L
Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
K
Verified Purchase
Kim C
Massapequa, US
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026
A
Verified Purchase
Aaron Duncan
Lake Worth, US
★★★★★ 5
Good socks they work.
Size: 2 pairs black L
I normally wear size 13&half to 14 men's, and these fit me ok. They sit just below the ankle. They can get a little tight for me so you should look out for that if you are on the thicker side. But they work as advertised and help moisturize your feet. I recommend wearing them if you're going to just be hanging around home for a bit in one spot as they can be a little slippery to walk in if you go fast. Would not recommend going up and down stairs.
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Reviewed in the United States on August 28, 2025
B
Verified Purchase
Brian
Houston, US
★★★★★ 5
Good socks
Size: 1 pair black L
Good socks
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Reviewed in the United States on May 6, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 3
REALLY unsafe to walk around in these
Size: 2 pairs black L
They do what they are expected to do, but should only be used if you are stationary. The gel base makes for very unstable footing if walking around
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

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