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Armstrong OPTIMA Lay-In and Tegular (Acoustic)

Item #: 3251

Regular price

$0.05 /sq. ft.

Covers 48 sq. ft.


Reg: $5.24 /sq. ft. ($251.59 /carton) Save %

$5.24 /sq. ft. Covers 48 sq. ft. $251.59 /carton |  Save $-251.59 (Liquid error (sections/product-template-tile line 224): divided by 0% off)

Ships FREE in 5 business days
Most delivery dates can be tracked after shipment.

The quantities are based on a 0 sq. ft. room size.

Note: Additional 2% material was added to cover any breaks or waste


Calculate how much you need

Calculations are based on a square room. The material estimate is meant to be used as a guide only.

Absorbs sound

These tiles are some of the best at bringing down the noise in your space.

Blocks sound

These tiles block sound from leaving or entering a closed space, creating private rooms and limiting distractions from others.

Impact resistant

These tiles are able to withstand occasional impact. Ceiling tiles with this characteristic are best used in school hallways, gymnasiums, or cafeterias.


Sold & Shipped by
0 of 1

Sound Absorption

0 of 50

Sound Blocking

Fire Rating: Class A

Flame-spread 25 or less, smoke developed 50 or less
What do these features mean?

OPTIMA Lay-In and Tegular (Acoustic)

  • Item: 3251
  • Edge Profile & Grid Size: Square Tegular 9/16
  • Product dimensions: 24" x 24" x 1"
  • Package quantity: 12 tiles /carton
  • Weight: 26lbs
  • Material: Fiberglass

Learn how to install a ceiling from start to finish in this 20 minute ceiling apprentice course/video.

Download installation instructions

Not quite ready for DIY?
Learn more about Kanopi installation service

Most Armstrong ceilings and grid have a 30-year limited systems warranty when installed together and used under normal conditions.

Link to download

Panels with Sag, Mold, and Mildew Resistance have a 10-year limited, stand-alone warranty.

Link to download

If you do not see your product listed in the documents, please contact us for additional warranty information: 866-438-8833.

Due to the carton sizes and weights, ceiling tile deliveries could be quite large and heavy. You can place a note on your order during checkout for special delivery instructions.

Compatible grid system

OPTIMA Lay-In and Tegular (Acoustic)
OPTIMA Lay-In and Tegular (Acoustic)
Square Tegular 9/16, 24 x 24 x 1, White Edit
OPTIMA Lay-In and Tegular (Acoustic), Square Tegular 9/16, 24 x 24 x 1, White Edit

SUPRAFINE XL 9/16" Exposed Tee System

Starting at 1.18/linear ft.

See full details

SUPRAFINE XL 9/16" Exposed Tee System

See full details
144" Main Beam

$283.23/carton (20 pieces)


24" Cross Tee

$141.62/carton (60 pieces)


48" Cross Tee

$283.23/carton (60 pieces)


144" Molding

$245.24/carton (30 pieces)


144" 12 Gauge Hanger Wire

$143.65/carton (140 pieces)


Estimated total for your items:

$1,096.97 Add Items TO Cart
Installation Services Available

Need help choosing your quantities? Contact Us

Residential projects only*: For drop ceiling projects under 480 sq. ft., we recommend QUICKHANG Installation Kits.
*QUICKHANG Kits do not meet commercial building codes.
Residential projects only*: For drop ceiling projects under 480 sq. ft., we recommend
QUICKHANG Installation Kits.
*QUICKHANG Kits do not meet commercial building codes.

Need help installing? We’ve got you covered

If you need a little help, we’ve made it easy for you. Let’s get this ceiling project done right so you can keep your business moving.

  • Free consultation
  • Backed by Armstrong Ceilings
  • Managed around your schedule
  • Saves you time
  • Quality Work by Certified Installers

    Frequently asked questions

    To find replacement tiles, you will need to find the item number of your current tiles. You can do that by removing the ceiling tile and flipping it over. Once you do that, locate the item # on the back of the tile. Enter the item number on our ceiling replacement page to get your match.

    Dust and loose dirt may easily be removed by light brushing or with a vacuum cleaner. The best attachments to use are the ones for cleaning upholstery or walls. Make sure to clean in one direction only to prevent rubbing dust into the surface of the ceiling.

    After loose dust has been removed, other marks can be easily erased with an ordinary eraser. Although, a fresh wall cleaner may be preferred. 

    Mineral fiber ceilings may be cleaned with a moist cloth or a sponge dampened in water containing mild soap. The sponge should contain as little water as possible. After washing, the soapy film should be wiped off with a cloth or sponge slightly dampened in clean water.

    Look for the disinfectable and cleanable icons for more information on your specific ceiling tile. You can also download our cleaning and disinfecting guidelines for more information.

    Our Ceiling Selector can help you figure out what you need. After a few quick questions, we give you recommendations and can help you with your order and with installation.
    It is recommended to change ceiling tiles out every 10 years. We have a 10-year warranty on most ceiling tiles. You can always patch and match a few tiles in the interim to transform any space or fix damages.

    All of our mineral fiber ceiling tiles and panels can be painted with latex paints. The front and back of 24-in x 24-in and 24-in x 48-in panels should be painted.

    PLEASE NOTE: Field painting will void the warranty. We cannot guarantee that the surface-burning characteristics, fire-resistance ratings, acoustical performance, dimensional stability/sag, or light reflectance will remain the same after repainting. TECTUM tiles can be painted up to 6 times without losing acoustical performance.

    The Noise Reduction Coefficient (NRC) value is the % of sound that can be absorbed by that tile. The best NRC ceiling tiles can absorb up to 95% of sound. Example: An NRC of .95 can absorb 95% of the sound that strikes the tiles surface.
    The Ceiling Attenuation Class (CAC) value is the number of decibels the tile can block from leaving or entering a closed room when installed as a drop ceiling. The best ceiling tiles have a CAC of 45, which blocks 45 decibels of sound that hit the tiles surface.

    The default and preferred method of payment for Kanopi is to pay online using a credit card (we accept all major credit cards). However, in some cases, you might be able to buy now and pay later using alternate payment methods including a PO, invoice, or check.

    Connect with one of our customer service team members by phone at (866) 438-8833, by submitting this form, or chat with us directly on our site to discuss your company's specific payment needs and see if you qualify.

    Yes, we accept tax exempt orders for qualifying businesses. You will need to provide your tax exempt certification using the steps below.

    1. Create or login to your Kanopi account.
    2. When logged in, click on the ‘click here to submit certificates’ button.
    3. The platform will guide you through the process until completion.
    4. Once you submit, you will be able to immediately proceed with your purchase(s) exempt from sales tax.

    If you have any questions, please connect with our customer support team.

    There is no minimum order requirement on However, to qualify for free shipping your order must be over $750.

    Yes. Kanopi is the eCommerce platform of Armstrong World Industries. It’s just another way to do business with Armstrong Ceiling!
    Started in 2020, Kanopi is the direct-to-consumer platform of Armstrong World Industries. Kanopi serves the portion of the market of small general contractors, business owners, general managers, property managers, facility managers, and homeowners. Typically, jobs under 20,000 square feet can be serviced through Kanopi. Armstrong works with national distributors, architects, interior designers, and major commercial projects.
    Yes. Almost all of the products sold on are Armstrong Ceilings products. Kanopi will continue to expand its product offering of Armstrong products, as well as additional manufacturers added on in the future.
    No. Our samples are a smaller version of a normal ceiling tile. The samples measure 6 inches by 6 inches. For contrast, our most common ceiling tiles are typically 2 feet by 2 feet or 2 feet by 4 feet.
    Our samples ship within 3-5 business days. We understand that our customers want the samples as quickly as possible, so we do everything we can to ensure a timely delivery.

    FIRE GUARD means that the product is engineered and tested as part of a fire resistant system, which includes tile, grid and the structure itself. Please check local building codes requirements for your space. The following link will direct you to additional information and support for Armstrong's Fire Resistant ceiling systems. 

    Fire ratings refer to flame spread and smoke development. Ratings indicate how rapidly flame spreads on one surface as compared to another. The flame spread rating is broken into three categories: Class A, Class B and Class C. Class A products have a flame-spread of 25 or less, and smoke developed of 50 or less. Class C products have a flame-spread of 76-200, and smoke developed of 0-450. Class A products are appropriate in the majority of commercial applications and Class C products are appropriate in most residential applications.


    OPTIMA Lay-In and Tegular (Acoustic)

    Customer Reviews
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    Dianna S.
    United States United States

    OPTIMA Lay-In and Tegular Tile

    Thank you for your quick response and superior packaging

    NAREN D.
    United States United States

    Kanopi by Armstrong

    Yes. Absolutely. Very good support

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