Create more space for an acoustic lining with Hush Bar Deep Resilient Bar. Its 30mm profile decouples plasterboard from the ceiling or wall structure, helping reduce sound transmission while supporting heavier lining boards.
Use Hush Bar Deep for new builds and refurbishments on timber or metal joisted ceilings, timber or metal studwork, and masonry wall linings.
10 bars per pack · 2.4m x 120mm x 30mm per bar · 24 linear metres per pack
Hush Bar Deep or standard Hush Bar?
Hush Bar Deep creates a 30mm void and can suspend up to 50kg/m². Standard Hush Bar has a 16mm profile and a 30kg/m² load limit. Deep is the option for specified heavier linings or a larger cavity; standard Hush Bar keeps the lining shallower.
Fixing centres and installation
- Set out the bars to the specified lining layout. Hush’s general guidance gives 600mm centres beneath timber joists or battens and 450mm on timber or metal stud walls.
- The Deep data sheet also lists ceiling installation at 450mm centres. Use the spacing specified for your ceiling and lining weight.
- Fix the bars to the supporting structure, then secure the plasterboard to the bars. Keep plasterboard fixings clear of the structure behind to preserve the resilient connection.
Acoustic performance
Hush reports 51 dB L’nT,w impact, 63 dB DnT,w airborne and 55 dB DnT,w + Ctr for its TF HD1029 timber-frame system incorporating Hush Bar Deep. These figures refer to that tested arrangement. The deeper profile can improve performance over standard resilient bars when paired with Hush’s recommended lining.
How many do I need?
Count the 2.4m bars needed along each row, total the bars, then divide by 10 and round up to whole packs.
For example, a 4.8m x 3m ceiling allowing six rows at no more than 600mm centres needs two bars per 4.8m row. That is 6 × 2 = 12 bars, rounded up to 2 packs. Check joints, end supports and cutting allowances against the final layout.
You’ll also need
Choose the board layers and fixing lengths for your lining detail. Plasterboard screws must secure the lining to the bar without reaching the joists or studs behind.
Add each extra you need, then adjust its quantity in your basket.
For help with the right quantity for your project, call our technical team on 01928 571 856 or email hello@soundinsulationstore.co.uk
