SKU: 46375532968

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

Sale price$158.69 Regular price$176.32
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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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Maaz Raheel
Lexington, US
★★★★★ 5
Nice passport holder
Color: Black Wallet
Practical and sturdy passport holder. It has a lot more pockets than my previous one and it was a good price. It is lightweight, you can fit all your travel cards, it looks and feels good quality. Just buy it!
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Reviewed in the United States on March 27, 2026
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Barrett
Whiting, US
★★★★★ 5
Yessssss 🩷🩷🩷🩷🩷
Size: 9, Color: Light Brown, Size: 9, Color: Light Brown
These things are SO comfortable! I feel like I’m walking on clouds 🩷 I ordered this tan and a black pair and I’m glad I did! I wish more colors were available in my size but apparently I got the memo late 😒. I usually wear a size 8 1/2 women and I ordered a 9 based on reviews with photos. The 9 fits wonderfully, my fat feet have room to spread when I’m walking and they provide adequate arch support. The color is as pictured, the shoe itself is cute, and I am able to walk normally without any discomfort…. If you are thinking about it, go ahead and get them girl they feel like heaven. Just order a half size bigger.
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Reviewed in the United States on April 18, 2026
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Ashley Rogers
Lake Worth, US
★★★★★ 5
Love these shoes!
UGG dupes! These are amazing! I love how comfortable these are. I have worn these quite a few times now with no issue. Definitely worth the price! I have seen a couple of complaints about the durability of these, but at the selling price I would gladly repurchase these over paying for the UGG brand. They fit TTS. I will definitely be ordering these in the lighter color!
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Reviewed in the United States on April 23, 2026
B
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Brianna
Cuba, US
★★★★★ 5
Sooo cute and comfortable!
I have two pairs of these sandals in pink and a cream color and they are sooo freaking comfortable! I have sciatic nerve pain so my leg gets fatigued fairly quickly from standing but I find these shoes allow me to stand longer and more comfortably. I’m hoping they’ll have the black sandals in an 11 back in stock soon because I want those as well 😆 If you’re looking for cute and functional footwear for the summer you can’t go wrong with these.
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Reviewed in the United States on May 20, 2026
S
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Sarah
Draper, US
★★★★★ 1
Not it.
Size: 10, Color: Nude, Size: 10, Color: Nude
I ordered these and was highly disappointed. The first pair I got, the velcro pieces were coming off. The threading was either coming undone or just wasnt there. On both shoes. I sent them back, had them send me a new pair, hoping it was just a fluke, cause those do happen. The next pair was better, but the corners on the velcro pads were still coming up, and i just didnt trust it to stay together. I sent them back and got a refund. As for fit, the first pair fit great, my foot was a little to skinny I think, or the straps were too loose even pulled as tight as they could go while still being able to connect the velcro pieces. It was something I could have probably worked with, they looked cute still and I still wanted to love them. The second pair, however, straps were still too loose. That didnt change. However, I got the same size, but this pair, my toes were too long for. Like, they were up on the little toe ledge thats supposed to frame your foot. That was uncomfortable. So I feel like the sizing was inconsistent. Another reason I opted to send them back for a refund. The shoes are cute, and i usually dont have issues with this brand. I have a couple pairs of boots from them that I absolutely love. But these sandals were a huge disappointment, unfortunately.
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Reviewed in the United States on May 29, 2026

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