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Interior Acoustical Panels

Lay-In Interior Ceiling Panels Select TAG to import BIM product files.

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Tectum Lay-In Ceiling Panels combine a unique textured beauty with superior abuse resistance.

These impact resistant wood fiber panels combine several functions that truly set them apart for use in commercial, institutional, recreational and industrial buildings.

The panels are available in a wide range of sizes. They can be cut easily and shaped with standard woodworking tools, and installed in standard intermediate duty, 15⁄16” grid systems. By using Lay-In, Tonico and Designer Series Tectum panels, the designer can create a variety of three-dimensional patterns.

Tectum Lay-In Ceiling Panels are available in their attractive unpainted natural finish, painted white or in custom colors. These panels may be painted or re-painted in the field up to six times without reducing their acoustical properties.

Tectum decorative and acoustical panels can take repeated abuse and still maintain their strength and appearance. Tectum Lay-In Ceiling Panels have remained the product of choice for over 60 years for any area where noise is a problem. In areas where ceilings face abuse, Tectum Lay-In Ceiling Panels are the best long-term solution. Tectum ceiling panels meet the requirements of ASTM E-1264 Type XIV pattern L Class A.
Lay-In Interior Ceiling Panels - TECTUM

NRC/Mountings - Noise Reduction

Installation Instructions

  • I-11 Tectum Lay-In Ceiling Panel Installation Instructions (Coming Soon)


ASTM E-84 - Flame Spread/Smoke Developed

Tectum Interior Ceiling Panels - 0 Flame Spread, 0 Smoke Developed

Sizes, Finishes

One inch Tectum Lay-In Ceiling Panels are available in 23¾" width and 23¾" and 47¾" lengths. 1½" and 2" Lay-In Ceiling Panels are available in 23¾" and 47¾" widths and 23¾" and 47¾" lengths and are back-rabbetted to allow for easy installation in the ceiling grid. Tectum Lay-In Ceiling Panels are available in natural, painted white or custom colors, and can easily be field painted up to six times without losing their acoustical efficiency.


  • 1" - 1.65 lbs./square foot

  • 1½" - 2.55 lbs./square foot

  • 2" - 3.50 lbs./square foot


  • 1.75 per inch of thicknes
Light Reflectance


Tectum ceiling and wall panel measurements are plus or minus
1/8 - 1/4". Thicknesses are nominal. Panels that are to be butted must be beveled and will require field fitting or molding can be used to cover edges.


Tectum Acoustical Panels can be used over swimming pools and in open construction such as breezeways and open garages. They should not be installed where they will come in direct contact with water or condensation. Reveal edge panels (Tonico) should not be used for this purpose.

1" panels should not be used where the relative humidity will exceed 85%. Panels 1½" or thicker are not restricted by humidity conditions.

In all cases, the plenum must provide cross-ventilation to prevent condensation.

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Tectum Manufacturing Facility, PO Box 3002, Newark, OH 43058 • 888-977-9691 • 740-345-9691 Copyright© 2017

Tectum, Acousti-Tough and Fabri-Tough are registered trademarks of Armstrong World Industries.