Rockboard 60 Mineral Wool Rigid Acoustic Insulation Board 2 in - 4

Our review of the Rockboard 60 case makes the bottom line clear: this 4-pack of rigid mineral wool panels is for anyone building serious acoustic treatments or bass traps who needs dense, fire-rated insulation that is easy to shape and install. With a 6 lb per cubic ft density and a Noise Reduction Coefficient of 1.0, the panels deliver predictable absorption across low to mid frequencies, and the Class A/Class 1 fire rating gives added confidence when installing in a studio or enclosed space.

Key Features

• 6 lb/ft3 density: Provides a firm, rigid core that performs well in bass traps and structural acoustic panels without sagging over time.
• Rigid mineral wool construction: Makes the boards easy to cut, mount, and finish for custom studio treatments and DIY projects.
• R-60 dimensions: Each 24 in x 48 in x 2 in board offers a consistent panel size that simplifies layout and minimizes seams.
• NRC of 1.0: Delivers excellent absorption for room control, helping reduce reflections and tame midrange energy effectively.
• Class A/Class 1 fire rating: Meets ASTM E84 flame spread criteria, which is important for installs inside studios and commercial spaces.
• 4 pieces per pack: A case provides enough material for multiple traps or a set of wall panels, offering upfront value for medium projects.

Who It's For

This product suits recording engineers, home studio builders, and hobbyists who want a rigid absorber that performs reliably for bass traps, broadband panels, and other acoustical treatments. The boards are particularly good where a firm panel is preferred over loose or flexible insulation, and where fire rating is a consideration.

It is less suited to installers who need a finished decorative surface out of the box or those seeking ultra-thin panels for very tight spaces; in those cases, additional framing, facing, or thinner material may be better. Also, installers who are highly sensitive to mineral dust should follow the safety guidance and wear protective gear.

Pros & Cons

Pros

• High density gives a solid, durable panel that works well in bass traps and structural absorbers.
• Excellent absorption performance with an NRC of 1.0 for effective room control.
• Class A/Class 1 fire rating adds a safety advantage for interior installations.
• Customers report good value and noticeable sound reduction in real-world uses such as quieting generators.

Cons

• Handling can cause irritation if precautions are not taken, so protective clothing and masks are recommended.
• Panels are rigid and require cutting and mounting hardware to achieve finished edges and faces for studio aesthetics.

Specifications

Manufacturer	Roxul
Product	Rockboard 60 rigid mineral wool board
Density	6 lb per cubic ft
Dimensions	24 in x 48 in x 2 in
Pack quantity	4 pieces
Noise Reduction Coefficient (NRC)	1.0
Fire rating	Class A / Class 1 (ASTM E84)

Our Verdict

The Rockboard 60 4-pack is a pragmatic choice for studio builders and DIY acoustic projects that need a high-density, fire-rated absorber at a reasonable price. It excels where rigid panels and strong absorption are required, and represents solid value for those prepared to cut and finish the boards for their room. Follow safety guidance during handling to avoid irritation.

Frequently Asked Questions

Are these boards safe to cut and handle?
Yes, but they can cause respiratory, skin and eye irritation; wear long-sleeved clothing, gloves, eye protection and a respirator when cutting or handling.

Can these be used for bass traps?
Yes, the 6 lb/ft3 density and rigid form make them well suited to many bass trap designs and broadband absorbers.

How many panels are included?
This case includes 4 pieces of 24 in x 48 in x 2 in Rockboard 60.