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Interior Timber Panelling & Sarking/Ceilings

JSC Timber has a range of species, available in a variety of timber panelling and sarking products suitable for new homes, renovations, and commercial projects. 

JSC interior panelling is available in the following profiles:

  • TG&V Panelling
  • Architectural panelling matching JSC Rusticated weatherboards
  • Architectural panelling matching JSC Vertical Shiplap weatherboards
  • Custom Made profiles available on request.  

Panelling or sarking is offered in a variety of timber species which offers a range of colours, surface textures and grain patterns. The following recommended products can be used for timber panelling and sarking:

  • TMT Taiga LW* (Lunawood)
  • TMT Taxon TW* (Tulipwood)
  • Western Hemlock
  • Western Red Cedar
  • Alaskan Yellow Cedar
  • Iroko
  • Tasmanian Oak
  • American White Oak

*Increasing environmental awareness and demand for sustainable, natural and chemical-free building products initiated JSC's research into thermal timber treatment methods, recognising that Thermally Modified Timber opens up a truly sustainable resource. The JSC TMT® product range offers a selection of Thermally Modified Timbers that have been specifically sourced for the New Zealand market based on their versatility, durability, aesthetic properties, and environmental credentials to suit the New Zealand weather conditions.

Key Features
  • Colours, grains, and finishes available to suit any style
  • Timber used in decorative applications
  • Provides many options for both residential and commercial projects
  • Profile species can be adapted for internal panels or walls, louvres, fins, or interior partitioning
  • Bespoke requirements, custom sizing and matching with existing profiles are available upon request
  • All species are available in various sizes and some species can have both Bandsawn and Dressed surface finish
NZ-Owned Business
NZ-Owned Business
Scope of Use

The JSC Interior Panelling & Sarking guide outlines the installation of JSC Timber panelling to internal applications in buildings covered by New Zealand building code that govern the fire performance requirements of materials used in the construction of all building forms.

  • Suitable for internal wall linings, and ceiling linings
  • Suitable for semi-wet areas such as bathrooms, kitchens and laundries
  • JSC Timber interior lining can be installed vertically, horizontally, or diagonally
  • Timber panelling can be installed directly on framing or battens

Please refer to JSC Interior Panelling & Sarking guide available for download under documents for the latest guidelines. 

Limitations on Use

JSC interior lining must be installed by a suitably qualified and experienced trade person. Where Restricted Building Work (RBW) is applied the installer must be a Licensed Building Practitioner (LBP) or supervised by an LBP.

These are recommendations and should be used as a guide only — Please refer to JSC Hardwood Panelling and Sarking guide for the full and latest guidelines 


  • JSC Timber interior lining can be installed vertically, horizontally, or diagonally
  • Timber panelling can be installed directly on framing or battens at maximum centres of 450mm on ceilings where at 600mm centres for walls (internal use only)
  • Panelling attached over other sheet linings can use 600mm centres for support
  • For thin panelling application restrain the insulation on other materials that might push the timber out


  • Studs must be clean and straight if internal panelling is installed directly to the studs or ceiling battens
  • Horizontal panelling may be fixed directly to the studs
  • Extra battens or noggins might be required when panelling to be installed vertically on a wall
  • Install battens over the concrete blocks prior to installation of panelling with mechanical fixings (Refer to manufacturer’s requirements)
  • Panelling can be fixed by: Face Nailing; secret nailing; screwing; hidden clipping; adhesives

DISCLAIMER: JSC's Interior Panelling is manufactured with care and inspected to ensure quality. It is a natural wood product and is subject to variations in weight, density, colour, grain and performance.

Other Performance Attributes

Performance varies based on the product/species chosen. See species/product data sheets on the JSC website for more information 

Product/Species Information
JSC Interior Panelling & Sarking Profiles
Alaskan Yellow Cedar Information Sheet
American White Oak Information Sheet
Iroko Information Sheet
JSC Timber Panelling Guide


JSC TMT Taiga Information
JSC TMT Taxon Information Sheet
Tasmanian Oak Information Sheet
Western Hemlock Information Sheet
Western Red Cedar Information Sheet

JSC Timber is a trusted and reliable manufacturer and supplier of premium interior and exterior hardwood and exotic softwood timber products and materials.

Product Enquiries

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