I have the armstrong 584a humiguard plus and they are 3/4" thick. these one are 5/8" thick are these the right ones? and if they're not is there free

Dennis, The panels you referred to are different than the existing 584A, the current item is 584B, it is a different panel than 1774, indicated by the item number.

I would like to try to order the right ones. the 584 B does not show that what is the item number that I need?

It's likely listed as 584, suffixes are not usually listed on the site.

How can I find out what style tile we have at our Animal Hospital?

Look on the backside of the tile, the sku or style no. usually is located there.

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Armstrong 2x2 White Ceiling Tiles; 16 pcs; Acoustic; Suspended Ceiling Grid; Dune 1774

Armstrong 2x2 White Ceiling Tiles; 16 pcs; Acoustic; Suspended Ceiling Grid; Dune 1774

Product ID: 115644599

Details

Brand
Armstrong
Color
White
Finish Type
Painted
Installation Type
Lay-In
Item Weight
54 Pounds
Material
Mineral Fiber

💧Mold & mildew resistant

🔇Acoustic noise reduction

🔥ASTM E84 Class A fire-resistive

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Description

🔇 Elevate your space with silent sophistication — because your ceiling should work as hard as you do.

EFFORTLESS UPGRADE - Easy drop-in installation with no glue, nails, or staples required
FIRE SAFE CONFIDENCE - ASTM E84 Class A rating ensures top-tier fire resistance and safety
WHISPER QUIET WORKSPACES - Minimizes noise and blocks sound between rooms for a focused environment
HUMIDITY PROOF DURABILITY - HumiGuard Plus technology resists sagging, mold, and mildew in high humidity areas
VERSATILE STYLE FUNCTION - Sleek white tegular edge tiles perfect for offices, basements, retail, and more

Armstrong 2x2 White Ceiling Tiles (16 pcs) combine superior acoustic performance with ASTM E84 Class A fire resistance and HumiGuard Plus moisture protection. Designed for easy drop-in installation in standard 15/16" ceiling grids, these durable mineral fiber tiles offer mold and sag resistance, making them ideal for commercial and residential spaces exposed to humidity. Their clean white tegular edge design enhances any suspended ceiling, delivering both style and function.

Specifications

ASIN	B07LFGDZXJ
Additional Features	Worry-free Packaging
Best Sellers Rank	#7,540 in Musical Instruments ( See Top 100 in Musical Instruments ) #229 in Recording Studio Acoustical Treatments
Brand Name	Armstrong
Color	White
Coverage	Storage Rooms, Discount Stores, Utility Rooms, Basements, High Humidity Areas
Customer Reviews	4.2 4.2 out of 5 stars (82)
Edge Type	Tegular
Finish Types	Painted
Form Factor	square tiles with tegular edge
Installation Method	Lay-In
Item Dimensions L x W	24"L x 24"W
Item Thickness	0.63 Inches
Item Weight	54 Pounds
Manufacturer	Armstrong
Manufacturer Part Number	1774A
Material Type	Mineral Fiber
Model Number	1774, 1774A
Pattern	Solid
Shape	Square
Size	24"W x 24"W x 5/8"T
Style Name	DUNE
UPC	888264406451
Unit Count	16.0 Count
Water Resistance Level	Water Resistant

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