- Products
- Intertenancy Wall System 50
Intertenancy Wall System 50
50mm AAC intertenancy wall for residential separation.

Acoustic + Fire for party walls
50 mm AAC intertenancy system - tested FRL 90/90/90 and Rw+Ctr up to 51 dB across CodeMark-certified build-ups.
Acoustic separation
Rw 62 / Rw+Ctr 51 dB on WIW 5002 discontinuous stud build-up - exceeds NCC Rw+Ctr≥50 target.
Fire-rated core
CSIRO-tested FRL 90/90/90 on all three WIW 50 system variants. Non-combustible AAC.
50mm Intertenancy Wall System
Residential intertenancy walls

System components
| Specification (Standard Stocking Size) | Est. Weight |
|---|---|
| Walsc AAC Panel 2200x600x50mm, 20/Pack | 45kg |
| Walsc AAC Panel 2400x600x50mm, 15/Pack | 49kg |
| Walsc AAC Panel 2550x600x50mm, 15/Pack | 53.5kg |
| Walsc AAC Panel 2700x600x50mm, 15/Pack | 57kg |
| Walsc AAC Panel 2850x600x50mm, 15/Pack | 58kg |
| Walsc AAC Panel 3000x600x50mm, 15/Pack | 61kg |

Trusted in projects across Australia

Riverstone Townhouse Estate
Riverstone, NSW - 2024
A 32-lot townhouse estate using 50mm Walsc AAC Panels for all intertenancy and boundary walls, maximising usable floor area while meeting fire and acoustic requirements.
- 50mm slim profile - maximised floor area
- FRL 120/120/120 fire rating achieved
- Lightweight panels - single-person handling
- Completed 4 weeks ahead of schedule

Kellyville Residential Development
Kellyville, NSW - 2024
A 24-unit residential development featuring 50mm AAC panels for external cladding on a lightweight steel frame, achieving excellent thermal performance in a cost-effective build.
- Cost-effective lightweight cladding solution
- R1.50 thermal resistance achieved
- Single-trade wall system
- NCC Volume 2 compliant
Material Properties
Source: Walsc Design & Installation Guide. Values are indicative - confirm with Walsc for project-specific design.
Have a Question?
Whether you need a quote, technical advice, or project support - our team is ready to help. Fill in the form and we'll respond within 1 business day.