Simpson Strong-Tie Party Wall Tie

Engineered Acoustic Connector for Timber Frame Party Walls

The Simpson Strong-Tie PWT200 Party Wall Tie is a precision-engineered solution designed specifically for connecting the party walls of timber-framed buildings. Uniquely combining acoustic compliance and structural performance, it ensures adherence to Part E of the Building Regulations (Resistance to the Passage of Sound) while delivering quick and consistent on-site installation.

Key Features

• Compliant with Part E Acoustic Regulations
  Manufactured using a minimal section of pre-galvanised steel, the PWT200 is optimised to reduce sound transmission across party wall cavities.

• Stamped Cavity Width Markings
  The upper face of the connector includes markings for 50mm, 62mm, and 75mm, assisting installers in maintaining consistent cavity width throughout construction.

• Unique Stiffening Rib
  Integrates a 50mm central rib, which improves the connector’s structural capacity and serves as a cavity width indicator—especially useful in closed panel construction.

• Fast, Simple Fixing
  Requires only 8 × 3.75 x 30mm square twist nails—4 per side—saving time and ensuring repeatable installation quality.

Product Details

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Benefits

• Reduces Sound Transmission
  The slender profile and strategic fixing layout minimise vibration pathways between adjacent dwellings, helping achieve required acoustic separation.

• Supports Modern Construction Methods
  Ideal for closed panel and open panel timber frame systems, providing a robust solution for both site-built and pre-fabricated structures.

• Visual Cavity Verification
  Stamped width references and central rib allow site teams to visually confirm cavity consistency without tools or measurements.

• Flexible Compatibility
  Can also be installed into light gauge steel framing using FPHSD34S1016 screws, broadening its application across hybrid construction systems.

Material & Specification

Specification	Detail
Product Code	PWT200
Material	Pre-galvanised mild steel
Cavity Width Suitability	50mm, 62mm, 75mm
Fastener Requirement	8 × 3.75 x 30mm square twist nails
Steel Frame Alternative	FPHSD34S1016 screws
Installation Orientation	At or near ceiling level
Acoustic Compliance	Meets Part E of Building Regulations

Installation Guidance

1. Fix the PWT200 to each party wall frame using 4 nails per side (or screws for steel).

2. Ensure the stiffening rib remains centred within the wall cavity.

3. Use the stamped cavity width references to confirm consistent spacing.

4. Install at or near ceiling level.

5. Maintain maximum 1200mm spacing between ties, unless otherwise specified by the structural engineer.

Applications

• Timber frame party wall connections in semi-detached or terraced housing

• Multi-residential timber buildings where acoustic separation is required

• Closed panel timber construction with precise cavity tolerances

• Hybrid timber-steel wall systems in mid-rise or modular builds

Important Notes

• Do not deviate from recommended fixing layout to preserve sound and structural performance.

• For enhanced acoustic control, always consult a building designer or acoustic engineer.

• Avoid overdriving nails, which may compromise edge distances or connection integrity.