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Wood begins as a natural resource and passes along the production chain until it is converted into end user products. This guide describes common principles for specifies to use in converting hardwoods and Cypress into appropriate end products. The content conveys themes that can be applied to building construction, interior design, fit-out, civil structures and landscaping. It will also benefit those who simply wish to learn more about the correct use of timber. This guide acts as an over arching document which is to be read in conjunction with a series of linked technical guides for specific applications, such as flooring, decks, stairs and handrails, piles and poles, cladding, fit-out and furniture.

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This publication has been developed specifically to raise understanding and knowledge of professional engineers designing timber boardwalks. Much of the information presented here is applicable only to Gatton Sawmilling Company systems. This publication is one of two (Boardwalk Design Guide and Boardwalk Engineering Guide) produced for Gatton Sawmilling Company by James Pierce & Associates, Consulting Engineers. The Guide is intended to be read in conjunction with the Boardwalk Design Guide. While care has been taken to ensure coverage of the design principles for boardwalks, the versatility and adaptability of this form of construction is only but touched on here and so the information must be regarded as incomplete.

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This guide is intended to give path managers and developers an insight into the minimum standards which should be applied to boardwalk and small timber bridge design. Readers are strongly advised to obtain professional advice regarding any walks and bridges they intend to construct as ground conditions and the average number of users are likely to affect the structure and foundation design.
 

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This information bulletin provides general guidance on member sizes, connections and suitable materials for the construction of timber handrails and balustrades. The information provided herein does not preclude the use of manufacturers’ proprietary information where this satisfies the requirements of the regulatory authority.

 

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In domestic, industrial and commercial construction, nails are the most commonly used and economical of all fasteners. If it is possible to make any choice in fastener type on economic grounds, nails should be selected. Staples are also used extensively and may be installed for a similar cost to nails. Their use is usually restricted to specific details of lightweight construction including flooring, diaphragms and sheathing in addition to furniture, joinery and the fixing of sheeting and upholstery to framing. Plain screws are used in special situations but have a higher installation cost than nails.

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Bolts, coach screws and timber connectors (splitrings and shear-plates) all have higher capacities than nails and screws and are therefore better suited to applications where a large load is imposed and the space available to accommodate fasteners is limited. Commonly, these are used in conjunction with proprietary and custom designed metal connectors but they are also used in direct load transfer from one piece of timber to another where they provide a basis for the design of elegant and economic connections.

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The need to provide convenient and safe pedestrian access is considered more important than ever. It may be part of a community’s infrastructure providing access to education, shopping and work or simply a recreational track in the country. But, all too frequently, a simple footpath will not do because of flooding or proximity to a busy roadway or the potential of a shorter route over otherwise difficult ground. Then a footbridge may provide an appropriate link, spanning both natural and manmade obstacles. The bridge may be utilitarian and plain, fulfilling its role without fuss. In other locations it provides a viewing platform encouraging the passerby to linger.

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