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A highly effective acoustic upgrade solution designed for residential or office/ commercial conversion or improvement work to upgrade an existing timber floor joist floor to meet the acoustic requirements of national Building Regulations. It can also be used in new-build to improve the internal environment by reducing sound transmission through upper floors.

The system comprises Gypframe lightweight metal floor channels loose laid over floor joists to allow 19 mm Gyproc Plank to fit between the channels. This ensures that the floor level is only increased by the thickness of the channel (7 mm). The plywood flooring must be to an approved national standard, minimum thickness 21 mm and have all edges tongued and grooved.

Specify the ceiling construction in work section K10.

NBS Specification

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This product is associated with the following NBS Create clause:
20-55-05/195 Rigid sheet floating floor system

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



British Gypsum


+44 (0)844 800 1991

Product reference



[Gypframe SIF1 floor channels]
[Gypframe SIF2 floor channels]
[Gypframe SIF4 floor channels]

Resilient layer/ insulation

 - Type:

19 mm Gyproc Plank

 - Plank edge:
Generally more suitable than tapered for this application.

Manufacturer details

Drywall Academy,
East Leake,
Leicestershire, LE12 6HX
Tel +44 (0)844 800 1991
Fax +44 (0)844 561 8816
NBS Plus
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