Technical information and Consulting Service

Sound advice based on a strong foundation

A World of Stone Ltd offer a professional consultancy service to Architects, Engineers, Builders and Councils nationwide on the use of natural stone.

Over 42 years in the trade of stone masonry with full qualifications in all aspects of stone masonry and stone management
both in the UK and here in New Zealand.

We are able to offer advise on types of stones and cladding systems that would be most suitable to your project

We are proud to work closely with the stone suppliers in New Zealand and are currently recommended consultants for
Hyde Stone, Paradise stone, Alexandra stone, Wanaka, Gibbston and West Coast Stone 

Please note all information and drawings may not be suitable for every project and an architect and engineer need to approve all information and drawings 

  • Introduction to Stone Cladding Systems

    Stone Cladding Systems


    Stone has been used as a building material for thousands of years to create some of the world's most amazing structures
    It is an extremely cost effective cladding over the life span of the building with minimal maintenance required
    it is also timeless and adds great value visually and monetary to any project

    In using stone we are creating New Zealand’s future historical buildings

    Choosing a Stonemason

    All stonework should be carried out by qualified stonemasons
    (Please note Stonemasonry in New Zealand does not come under the LBP Licensed Building Practitioner Scheme
    A brick laying license does not cover stonemasonry and must not be used
    to sign off stonework the two trades are completely different in skills required)

    It is very important to choose a stonemason that is going to produce the kind of stonework you want

    Stonemasonry is an art form and each stonemason may have a different approach and style for using the many different types of stone available
    Locally or overseas stone

    • ●  Look around at other stonework so you are familiar with the type of work you require

    • ●  Check to see if they have any experience in the style and stone required

    • ●  Check references and qualifications, membership of any trade associations

    • ●  Be careful of just going for the cheapest price, stonework is not cheap and is a real key feature to your home or project

    “The bitterness of poor quality remains long after the sweetness of a low Price is forgotten.”

    Stone Cladding systems

    There are four main cladding systems predominantly used in stonemasonry

    Rigid Fixed Stone Cladding System

    The Rigid fixed Cladding System is to be used with all quarried stone of 100 - 200mm and exceeds the 220kg/m2 Solid fixed stone work (excluding Hyde Stone which has its own cladding system)
    This system has a 40mm cavity and is built against a 7.5mm Fibre Cement Board
    coated with three coats of Mulseal and with all joins and corners foil taped which is attached to 40mm vented battens fixed to studs

    Please see manual for further details.

    Stone types using the Rigid Fixed Stone Cladding System

    Alexandra schist
    Basalt stone
    Cluden stone
    Gibston Schist
    Katikati Stone
    Matatoki stone
    Paradise stone
    Poolburn schist
    River stone
    Timeru bluestone
    Te Kuiti Lime stone Westland schist
    And all other stone types

    Hydestone Cladding System
    The Hydestone Cladding System to be used with ONLY Hyde Stone

    Solid fixed stonework 100 - 200mm and exceeds the 220kg/m2
    This system has a 40mm cavity and is built against a fibre cement board attached to a 40mm vented batten fixed to studs
    The Hydestone cladding system must only to be used with Hydestone products
    And not to be used with any other stone (please use the Rigid Fixed Cladding
    System if using any other stone) failing to use the proper systems could result in council not signing off cladding system
    Please see manual for more details

    Veneer Stone Cladding System

    The Veneer Cladding System is to be use with stone that has been sawn down to a 40mm veneer
    This system has a 20mm cavity and built against a 9mm Etapan Fibre Cement Board with all joints and corners tape and waterproofed with Mapie Products only
    Please see manual for more details

    including veneer on to block/concrete

    Stone Cladding on Block/Concrete

    To be used with solid fixed stone 100 - 200mm and exceeds 220kg/m2
    Stone cladding against block or concrete generally has no cavity (depending on design) with solid fixed stonework the concrete or block is usually given three coats of mulseal and the used of Poddrain to direct any moisture down to the weep holes at the Bottom of the wall is commonly used
    Please see Manual for more details


For technical details for Branz appraised Hyde Stone System please click on link below:

Hydestone Schist Wall Cladding System

Hydestone System Installation Manual

Rigid Stone Cladding Systems

Rigid Fixed Stone Cladding System

The rigid fixed stone system is based on the masonry construction standards NZS 3604, NZS 4210 and AS/NZS 2699
The above standards require a cavity of between 40mm and 70mm
This cavity functions to provide structural separation between a rigid stone cladding of 100 - 200mm that exceeds weights of

220kg/m2 and the flexible timber framing and also to provide a 40mm- 70mm ventilated drainage path to the building exterior for moisture that has penetrated the stone/masonry.

Specific design must be carried out for the timber framing supporting all areas where the stone cladding exceeds weights of 220kg/m2

Components Cavity batten

  • ●  40 x 45mm H3.5 vented cavity battens grooved with 20mm wide by 15mm deep

  • ●  Grooves 150mm apart to provide easy air flow within the cavity

  • ●  Over a 50mm damp proof course complying with NZBC Acceptable Solutions E2/AS1

  • ●  Cavity batten fixings - 100 x 4.0mm galvanised flat head nails every 300mm

    Fibre cement board

  • ●  Etapan 7.5mm fibre cement board screwed with 40mm stainless steel screws every 150mm all joins and corners to be foil taped and three coats of Mulseal water proof

  • ●  to be applied to all exterior areas

  • ●  Fibre cement board to be 10mm clear of soffit and 70mm off the foundation


  • ●  All stone must be clean of dust and contamination and kept as dry as possible

  • ●  All stone to be laid by qualified stonemasons and properly bonded as in accordance with the

    Stonemasonry Best Practice Guide

  • ●  Please see manual


    Mortar - composed of Portland cement, sand, hydrated lime and water Complying to NZS4210

Wall ties and fixings

  • ●  Wall ties complying to AS/NZS2699

  • ●  Fixings 100 x 12g Tek Screws

  • ●  All ties to be fixed through the fibre cement board, batten and into the stud

  • ●  Silicons to be used to seal around screws

  • ●  Ties should be in accordance to zone type

  • ●  Spacing should be as per table and zone type

These values are maximums.


The average weight for 150mm stone cladding including mortar is approximately 360kg/m2

The average weight for 200mm stone cladding including mortar is approximately 480kg/m2

System Installation

  • ●  All framing, foundation and bracing requirements must be met prior to installation of the cladding system

  • ●  All Damp proofing, fixing of battens, fibre cement board, taping of joins and corners, flashings and waterproofing to be carried out by a (Licensed Building Practitioner ) builder and not by the stonemason

  • ●  All information in this cladding system are to be used as guidelines and must be approved by the Architect and engineer

Stone Cladding Mass




Horizontal Vertical

Horizontal Vertical


600mm. 400mm

400mm. 400mm


600mm. 300mm


600mm. 400mm