120kg Rockfibre Boards
In stock
Price range: R2 324,00 through R2 461,00 incl. VAT
120kg Rockfibre insulation boards are ultra-high-density mineral wool boards designed for maximum rigidity, fire resistance, and acoustic control. This density is specified in applications where insulation boards must remain structurally stable under demanding conditions, including heavy-duty fire-rated systems and industrial environments. All products on this page are 120 kg/m³ boards, with thickness selected as a variant.
Price shown is per pack. Boards are not sold individually. Each pack contains multiple boards depending on thickness. Select a thickness below to see how many boards are included per pack and the total coverage (m²).
Est. Delivery: 20 July – 21 July
120kg Rockwool Boards
120kg Rockfibre boards are very high-density mineral wool insulation boards designed for heavy-duty fire protection and acoustic applications. This density offers maximum rigidity and durability, making it suitable for systems where insulation is exposed to higher mechanical stress.
These boards are typically used in industrial installations, high-performance fire-rated systems, plant rooms, and specialist acoustic applications where long-term stability and non-combustible performance are critical.
Rockfibre boards are manufactured from stone wool, a type of mineral wool insulation used in fire-rated and acoustic applications.
View all Rockfibre insulation products and available densities.
Available thicknesses & boards per pack
120kg Rockfibre boards are supplied in standard 1200 × 600 mm board size. Pack quantities vary by thickness:
- 40mm – 10 boards per pack
- 50mm – 8 boards per pack
- 75mm – 5 boards per pack
- 100mm – 4 boards per pack
Pack quantities vary due to board weight and handling requirements.
120kg Rockfibre Board Specifications
- Density: 120 kg/m³
- Material: Mineral wool insulation
- Format: Rigid insulation board
- Standard board size: 1200 × 600 mm
- Ultra-high rigidity and compressive strength
- Non-combustible insulation material
- Suitable for fire-rated insulation systems
- Excellent acoustic performance in rigid applications
- Designed for heavy-duty industrial and commercial use
Typical applications
120kg Rockfibre insulation boards are commonly used in:
- Heavy-duty fire-rated wall and partition systems
- Plant rooms and high-risk service areas
- Industrial equipment enclosures
- Lift motor rooms and service risers
- High-performance acoustic barriers
- Areas requiring maximum board rigidity and stability
Why choose 120kg Rockfibre boards?
- Highest rigidity in the Rockfibre board range
- Maintains shape under load and in vertical installations
- Superior acoustic damping in rigid systems
- Suitable for severe fire-rated and industrial conditions
- Long-term dimensional stability
Need help choosing the right density?
If you’re unsure whether 120kg Rockfibre boards are required for your application, our team can help you select the correct density and thickness based on fire, acoustic, and structural requirements.
Related Rockfibre Products
Common Applications
| 120kg Rockfibre Boards | 100mm, 40mm, 50mm, 75mm |
|---|
Delivery Information
At Insulation Warehouse, we provide fast, reliable delivery across our service network so you get the insulation you need without delays. We are an online insulation store and do not operate as a walk-in retail outlet. All orders are placed online, processed immediately, and delivered directly to your home, site, or business.
Delivery Timeframes
- Most standard orders are delivered within 1–3 business days
- Fast dispatch from our storage facilities
- Orders are shipped as soon as payment is received
Specialized Product Lead Times
A few specialized or less common items may require additional preparation before dispatch. These can include:
- Industrial densities
- Custom-sized or made-to-order insulation
- Foil-faced products
- Commercial or non-standard rolls
When these items require extra time, we’ll let you know the expected delivery window.
Delivery Network
We deliver insulation products throughout:
- Johannesburg
- Centurion
- Pretoria
These areas form our primary delivery network, ensuring quick turnaround times for homeowners, installers, and contractors.
We can also deliver to surrounding suburbs — just send us your address if you’re unsure.
Delivery Process
- Orders leave our storage facility once paid for in full
- Delivery updates and timelines are provided
- Large orders may arrive on pallets to ensure product protection
Fast, Reliable Service
Our goal is to provide the quickest, most convenient delivery service possible. Whether you’re insulating a home, office, or development, our streamlined logistics ensure your materials arrive safely and on time.
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