Landscaping & Infrastructure

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 timbers.

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, have 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 Vitex have been popular in the past and now our FSC® 100% certified South American hardwoods, Tonka and Garapa are now the preferred species.

Typical timber sizes used for these landscaping applications are ex 150x40mm, 150/200x50mm and 200/250x75mm; however, we stock Tonka timber in sizes up to 300x300mm with even larger sizes available on indent.

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

Download Premium Exterior Hardwood Brochure

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

(90x95)

150x75

(150x65)

200x75

(180x65)

250x75

(230x65)

300x75

(280x65)



100x100

(90x90)

150x100

(140x90)

200x100

(180x90)

250x100

(230x90)

300x100

(280x90)

150x150

(140x140)

250x150

(280x65)

200x200

(180x180)

250x250

(230x230)

300x200

(280x180)

300x300

(280x280)

Landscaping & Infrastructure Options