Landscaping & Heavy Construction

Hardwood timber for exterior construction

From its early origins in the 1930’s, Rosenfeld Kidson has been importing hardwood timber from around the world for heavy construction and infrastructure projects.

Hardwood construction timbers for bridge, railway and wharf construction and hardwood timber poles and crossarms for power reticulation have been supplied to the New Zealand market by Rosenfeld Kidson timber merchants since 1930. Please refer to our section on Crossarms, Poles and Piles for more details regarding these specialist construction timber supplies.

The high durability of New South Wales hardwoods, particularly in the ‘royal group’ including Ironbark, Tallowwood, Greybox, Greygum and Turpentine, and more recently, some of the South American hardwoods, has made these the hardwood timbers of choice for heavy construction projects.

However, there has been an increasing demand for durable hardwood landscaping timbers for both domestic and commercial landscaping projects, as well as timber boardwalk construction around parks, reserves and waterfronts. Species such as PEFC certified Karri, Vitex and Kwila have proven themselves to be the preferred landscaping timber species in the past and now our FSC 100% certified South American hardwoods, Tonka, Garapa and Massa are being increasingly used.

Typical timber sizes used for these landscaping applications are 150x40mm, 150/200x50mm and 200/250x75mm; however, we stock Karri and Tonka timber in sizes up to 300x300mm.

Landscaping and construction timber species

Iroko, Jarrah, Karri, Kwila, Massa, Tonka, Vitex

Find out more about hardwood timbers

Our experienced sales team can recommend the most suitable hardwood species for your construction project or landscaping work, and provide timber pricing. Contact us.

Hardwood Size Chart

Nominal Size (Finished Size)

50x25
(45x19)
75x25
(65x19)
100x25
(90x19)
150x25
(140x19)
200x25
(180x19)
250x25
(230x19)
 
50x40
(45x32)
75x40
(65x32)
150x40
(140x32)
200x40
(180x32)
250x40
(230x32)
 
50x50
(45x45)
75x50
(65x45)
100x50
(90x45)
150x50
(140x45)
200x50
(180x45)
250x50
(230x45)
300x50
(280x45)
    100x75
(90x65)
150x75
(140x65)
200x75
(180x65)
250x75
(230x65)
300x75
(280x65)
    100x100
(90x90)
150x100
(140x90)
200x100
(180x90)
250x100
(230x90)
300x100
(280x90)
      150x150
(140x140)
  250x150
(180x140)
 
        200x200
(180x180)
   
          250x250
(230x230)
 
        300x200
(280x180)
  300x300
(280x280)

Landscaping Projects

Project Site Customer Product Dimension
Shed 10, Queens Wharf Auckland Council Tonka 225x75mm
Blueskin Bay Bridge Dunedin City Council Tonka 200x100mm
The Boardwalk', Okahu Bay Landing Auckland City Council Vitex 150x40mm
AUT University boardwalk, North Shore NZ Strong Construction Vitex 200x50mm
Parnell Baths decking Auckland City Council Vitex 75x40mm
Achilles Point landing project, St Heliers Bay Auckland City Council Vitex 150x50mm
New Plymouth foreshore promenade New Plymouth City Council Tonka 225x75mm
Kohi beach boardwalk Auckland City Council Vitex 150x50mm
Sir Barry Curtis park (bridges, seating & decks) Manukau City Council Vitex 150x40mm
Vitex 200x50mm
Karri 200x75mm
Waikato riverside boardwalk Taupo District Council Karri 200x75mm
Sentinel' penthouse deck, Takapuna Placemakers Massa 150x40mm
Browns Bay beachfront boardwalk North Shore City Council Karri 225x75mm
Chinese garden walkway and deck, Queen's gardens Nelson City Council Karri 200x50/75mm
Judges Bay Beach Replenishment Project Auckland City Council Vitex 50x50mm
Vitex 150x40mm

Rosenfeld Kidson, as timber merchants acknowledge the importance of conserving the world’s greatest renewable resource.

We are pleased to advise that we carry Chain-of-Custody (CoC) certification that enables us to sell timber that carries either FSC certification (SGS-COC-006703) or PEFC certification (SGS-PEFC/COC-0993).

FSC certified timber and PEFC certified timber undergo independent, third-party audited certification procedures at every step of the supply chain. This provides designers, specifiers, architects and consumers absolute assurance that those forest and wood products labelled as FSC certified or PEFC certified originate from legal sources, which are managed to prescribed social, economic and environmental standards.

As a New Zealand timber supplier offering the country’s largest range and quantity of specialist certified timbers we believe that stocking FSC & PEFC certified timber is essential for our continued growth. A major part of our timber range has FSC or PEFC certification and we are continually striving to increase this.


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