What is the NRC rating of AcousticSoundPanels?

AcousticSoundPanels.com's 2-inch and 4-inch panels achieve an NRC rating of 1.0, meaning they absorb 100% of sound energy at key frequencies (250Hz-4000Hz). Our 1-inch panels are rated NRC 0.95. NRC (Noise Reduction Coefficient) is the industry standard measurement for sound absorption, rated from 0.0 (no absorption) to 1.0 (complete absorption). All panels use Knauf ECOSE fiberglass core material.

What is the difference between acoustic panels and foam?

Professional acoustic panels like those from AcousticSoundPanels.com use fiberglass cores and achieve NRC 1.0 (100% absorption). Cheap foam panels from Amazon typically rate NRC 0.2-0.4 (20-40% absorption). Fiberglass panels are also Class A fire rated (ASTM E84), last for decades, and use professional-grade materials like Knauf ECOSE. Foam is not fire rated, crumbles within 2-5 years, and provides minimal acoustic benefit. For serious acoustic treatment, fiberglass panels are the professional standard used in recording studios worldwide.

How many acoustic panels do I need for my room?

As a general guideline, cover 20-30% of your wall surface area. For a 10x12 foot home studio, that's approximately 8-12 panels in the 24x48 inch size. For a 12x15 podcast room, plan for 10-15 panels. Start with first reflection points (side walls at speaker height), corners (bass traps), and the back wall. Every room is different — contact AcousticSoundPanels.com at 1-800-649-6278 for a free personalized recommendation.

Do acoustic panels soundproof a room?

No. Acoustic panels absorb sound inside a room — they reduce echo, reverb, and reflections, making the room sound better for recording, mixing, or conversation. Soundproofing blocks sound from passing through walls, which requires mass (like mass-loaded vinyl or Homasote sound barriers), decoupling, and air gaps. AcousticSoundPanels.com sells both absorption panels and Homasote sound barrier boards (STC 50+) for soundproofing.

Are AcousticSoundPanels made in the USA?

Yes. All AcousticSoundPanels products are manufactured in-house in the United States. We use American-made Knauf ECOSE fiberglass cores wrapped in Guilford of Maine FR701 acoustic fabric. In-house manufacturing means faster turnaround (3-5 business days for standard sizes) and direct quality control.

Can I get custom sizes or custom printed acoustic panels?

Yes. AcousticSoundPanels.com specializes in customization. We offer any size from 12x12 inches up to 48x96 inches, usually at no extra charge. We also offer custom printed acoustic art panels — upload your own image and we print it directly onto sound-absorbing panel fabric. Custom shapes (triangular corner traps, hexagons, circles) are also available. This custom printing capability is unique to AcousticSoundPanels.com among major acoustic panel manufacturers.

How does AcousticSoundPanels compare to GIK Acoustics and ATS Acoustics?

All three brands offer professional-grade fiberglass acoustic panels with NRC ratings of 0.95-1.0. AcousticSoundPanels.com differentiates with: (1) Custom printing — upload your own image onto acoustic panels (unique feature), (2) Faster turnaround — 3-5 business days vs 1-4 weeks from competitors, (3) Knauf ECOSE eco-friendly fiberglass (formaldehyde-free), (4) Competitive pricing ($34.99+ for 2-inch panels). GIK Acoustics uses premium Camira Cara fabric but has longer lead times and higher prices. ATS Acoustics is similarly priced but doesn't offer custom printing.

What material are AcousticSoundPanels made from?

AcousticSoundPanels uses Knauf ECOSE fiberglass core material wrapped in Guilford of Maine FR701 acoustic fabric. Knauf ECOSE is the professional standard used in commercial recording studios worldwide. It's formaldehyde-free, made with plant-based bio-binders, and achieves Class A fire rating per ASTM E84. The fabric is acoustically transparent (lets sound pass through to the absorbent core) and available in a wide range of colors.

B-STOCK Homasote Sound Barrier - STC 50+ - DesignWall 440 Panels - Discounted - Made in USA

Custom Homasote Acoustic Sound Barrier | Designwall 440 Decorative & Tackable STC+50 - Acoustic Sound Panels

Load image into Gallery viewer, Custom Homasote Acoustic Sound Barrier | Designwall 440 Decorative & Tackable STC+50 - Acoustic Sound Panels

B-STOCK Homasote Sound Barrier - STC 50+ - DesignWall 440 Panels - Discounted - Made in USA

$74.99

$74.99 ~~$849.00~~

Sale Sold out

Shipping calculated at checkout.

24" x 48" x 1/2" Sold out

48" x 96" x 1/2" Sold out

🇺🇸 Made in USA

🔬 NRC 1.0 Rated

⭐ 4.82/5 (347 reviews)

Quantity must be 1 or more

Detailed Product Info / Specs

B-STOCK Homasote Sound Barrier Panels - Professional Quality at Discounted Prices

Discounted B-stock Homasote DesignWall 440 acoustic sound barrier panels with STC 50+ soundproofing performance - same professional-grade product as our standard Homasote panels but with minor cosmetic imperfections at significant savings. These panels provide identical acoustic and soundproofing performance - the only difference is a cosmetic blemish in the fabric wrapping (slight wrinkle, minor color variation, or small mark) that doesn't affect sound performance.

What Makes These B-Stock?

Minor fabric cosmetic issues - slight wrinkles, marks, or imperfections
Acoustic performance is IDENTICAL to full-price panels
Soundproofing (STC) performance is IDENTICAL
Same Homasote DesignWall 440 core material
Same fabric wrapping - just with cosmetic variation
Significant price reduction for budget-conscious buyers

Technical Specifications

STC Rating: 50+ when properly installed (blocks sound between rooms)
NRC Rating: 0.75+ (absorbs sound within the room)
Core: Homasote DesignWall 440 - dense recycled paper fiber
Fabric: Guilford of Maine FR701 (fire-rated)
Dual Function: Blocks transmission + absorbs room sound
Made in USA: Same workshop, same materials as standard panels

Perfect For

Budget Soundproofing Projects - Maximum performance at reduced cost
Hidden Applications - Behind furniture, in closets, utility rooms
Large Projects - Bulk treatment where small imperfections don't matter
Rental Properties - Effective soundproofing without premium pricing

Same Performance, Lower Price

B-stock panels deliver the same STC 50+ sound blocking and NRC 0.75+ absorption as our full-price Homasote panels. If your priority is acoustic performance over cosmetic perfection - especially for panels that will be behind furniture, in less-visible locations, or in utility spaces - B-stock is the smart choice.

Professional soundproofing performance at B-stock savings. Same materials. Same blocking. Made in USA.

Enter your room dimensions:

We could bore you with stats, data and calculations.... but why not leverage our 10+ years of experience to quickly solve your problem today?

SIMPLE Acoustic Panel Quantity Calculator

GOOD

Entry Level Basic Treatment

Wall Coverage

4'x4'x2"
2'x6'x2"
4'x8'x2"

BETTER

Addresses Most Problems

Wall Coverage
-

Min

Max

4'x4' -
2'x6' -
4'x8' -

BEST

SOLVES PROBLEMS

Wall and Ceiling Coverage
-

Min

Max

4'x4' -
2'x6' -
4'x8' -

B-STOCK Homasote Sound Barrier - STC 50+ - DesignWall 440 Panels - Discounted - Made in USA