Timber or Steel Framed Wall - System GBX 4
Suitable for use in Partitions within X-ray Rooms

• Studs shall be 90 x 45mm minimum spaced at 600mm centres maximum
• Nogs are to be set at 800mm centres maximum
• The moisture content of the timber framing shall be 12 - 16% at the time of lining.

• Steel stud dimensions to be 63 x 34 x 0.55mm minimum with 6mm return and spaced at 600mm centres maximum
• Steel channel dimension to be 63 x 30 x 0.55mm nominal

• 2 Layers of 13mm GIB® X-Block™
• Where double layer linings occur the vertical joints of the outer layer are offset by 600mm from those of the inner layer
• All joints must be formed over framing with linings fixed hard to floor
• Other side - 1 layer of 13mm GIB® X-Block™, Vertical fixing only permitted. Offset joints 600mm from opposite side of framing.
• All joints must be formed over framing with linings fixed hard to floor.

Fasteners - Timber Frame
Inner layer and single layers - 41mm x 6g GIB® Grabber High Thread Drywall screws
Outer layer - 51mm x 7g screws as above

Fasteners - Steel Frame
Inner layer and single layers - 25mm x 6g GIB® Grabber self tapping Drywall screws.
Outer layer - 41mm x 7g screws as above

Fastener Centres - Timber Frame
Inner layer - 600mm centres up each stud and to the top and bottom plates
Outer and single layers - 300mm centres around the sheet perimeter, 12mm from the sheet edges Single screws at 300mm centres to the intermediate studs

Fastener Centres - Steel Frame
All layer 300mm centres up each stud, 12mm from the sheet edges
No fasteners to the top and bottom channels

Inner and middle layer - Stop all GIB® X-Block™ sheet joints, using only GIB® X-Block™ jointing compound flushed out between the tapered edges (paper tape not required on the inner layers).

Outer layer first coat - The joints must be reinforced using only paper tape and GIB® X-Block™ jointing compound. Conventional topping compounds are used to complete the jointing process.