Knauf Shaftwall: Shaftwall SW5/13

Knauf Shaftwall: Shaftwall SW5/13


Knauf Shaftwall is our innovative system to form enclosures around service and lift shafts while working from one side.

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Knauf Shaftwall is suitable for situations where access from one side is restricted, giving a high fire performance whilst being simple to construct.

Features and benefits:

  • Quickly constructed from one side.
  • Up to two hours fire resistance.
  • Robust.
  • Proven in tall buildings across the UK.
  • Uses unique Knauf ‘C-T’ Stud.

To be installed in accordance with Knauf’s recommendations and British standards BS 8212-1995 and BS 8000-8:1994.

General information

Uniclass 2015

Ss_25_10_30_35 Gypsum board partition systemsPrimary


K10/125 Metal stud partition system

K10/30 Metal stud

Specification data - Gypsum board partition systems

Product Reference

Knauf Shaftwall: Shaftwall SW5/13



Stud configuration

60 mm Knauf 'C-T' stud

Framing centres

300 mm

For areas to receive a ceramic tiled finish.

400 mm

For areas to receive a ceramic tiled finish.

600 mm


Head/ Floor channel

62 mm Knauf ‘J’ Channel

Utilising 62 mm Knauf Deep Flange ‘U’ Channel if deflection allowance is specified.


Knauf Nailable plugs at maximum 600 mm centres

Where alternative fixings are used to meet performance constraint confirmation is required from supplier.




Two layers of 12.5 mm Knauf Fire Panel to non-shaft side, with 19 mm Knauf Core Board secured between studs

Horizontal board joints

Knauf Flat Fixing Plate

Lining fixings

Knauf Drywall Screws

Knauf Performance Plus Screws

To be used with Knauf Performance Plus and Knauf Soundshield Plus Boards.

Perimeter Sealing

Two continuous beads of Knauf Sealant on Head/ Floor Channels

Knauf Intumescent and Acoustic Mastic


25 mm Knauf Earthwool Acoustic Roll

Not required

Head condition

Structural soffit

Deflection allowance

To be determined by a structural engineer. Consult manufacturer for information.

Head track fillets

Consult manufacturer and insert requirements.

Head insulation detail


Not required


Taped and Jointed for a Seamless finish using Knauf Jointing Products

Taped and skimmed with Knauf Finishing Plaster

Knauf RMF [Ready Mixed Finishing] in accordance with General clauses

Standard product features

Fire resistance (BS 476: Part 22 Integrity only):

90 minutes.

Acoustic rating (when tested to BS EN 10140-2:2010):

45 Rw dB.

Partition thickness:

87 mm (excluding finishes).

Maximum partition height (based on limiting deflection of L/240 at 200 Pa):

4900 mm.

Duty rating (BS 5234: Part 2 Section 1.6.2 and 1.6.3):


Product Options


- Stud configuration:

Reduce stud centres to 300 or 400 mm maximum for areas to receive a ceramic tiled finish when using Knauf Plasterboard.

Head insulation detail:

Knauf Earthwool Building Slab Insulation RS60 retained by Knauf 25 x 50 mm angle sections at head of partition, located within head track.

Digital objects

Platform Compatible Version Certified to

Revit 2017


Download now from NBS National BIM Library

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