Fiberglass Insulation Boards
Starting at $96.00
- Fiberglass insulation board comparable to OC703 and Knauf 3 LB Insulation Board.
- Available in 1" and 2" in 2' x 4' panels.
- Namebrand quality without the namebrand price.
- $50 flat rate shipping on your entire order to main 48 US states only.

Fiberglass insulation board is not used to isolate sound, but to absorb sound. This product used to reduce boundary reflections, control excessive room reverberation, and elminate slap-echo between parallel surfaces for easier listening or recording. Most often used in commercial/industrial assemblies, as well as DIY projects in home theaters, recording studios, and office spaces. Leave this material exposed or wrap it in an acousticall transparent fabric (Guilford of Maine fabric or similar) for a more attractive finish.
*Samples are not available for this material. Partial packages or individual pieces are not available.
PRODUCT SPECS
FIBERGLASS INSULATION BOARD PRODUCT SPECS
Weight |
1" and 2": 25 lbs per pack |
Nominal Density |
3 pounds per cubic foot |
Compressive Strength |
@ 10% deformation: 25 lbs per sf @ 25% deformation: 90 lbs per sf |
Thickness | 1" or 2" |
Temperature Range | 0oF to 450oF |
FIBERGLASS INSULATION BOARD SOUND RATINGS - INDEPENDENT TESTING
125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | NRC | |
1" 3# Density | .11 | .68 | .90 | .93 | .96 | .70 |
2" 3# Density |
.17 | .86 | 1.14 | 1.07 | 1.02 | 1.00 |
*Each column shows absorption coefficient at that frequency. Per ASTM C423.
INSTALLATION
Acoustic fiberglass board is a great choice for custom installations or DIY acoustics. Our fiberglass insulation boards are easily cut to size with a utility knife or shears and can be mounted into wall or ceilings using perforated base insulation hangers or similar. Wall installations should connect at 5 points (each corner and the center). Ceiling installation should connect at 6 points (each corner and two on the perimeter at the midway point).
SHIPPING
This material ships next day from our warehouse in Ohio. Delivery is typically made within 2-7 business days after placing the order. Inventory is not guaranteed and can vary depending on the product type, size, weight, and quantity. Contact us by email for information regarding picking up your order.
DISCOUNTS
Discounts of up to 20% are available and based entirely on the dollar amount of your total order. Add all of your products and appropriate quantities to your cart to view the final price. For projects requiring over 3,000 square feet of material, email us with a request for a custom quote. Include the delivery address, product name(s) with quantities, and time frame for the project. We will promptly provide a quote for your project and, when possible, quote a lower price than the price quoted online.