Construction & Building Timber

"It starts with a solid foundation"

Harper Timber is a major stockist of structural timber & engineered wood products.

Design Pine

Design Pine is engineered utilising LOSP treated plantation pine. The sections are constructed by finger jointing and laminating small sections of pine together. Finally the laminated sections are treated, primed and packaged.

Design Pine is stable and beautifully finished. Ideal for applications where a long lasting uniform result is required.

View Available Sizes ››

Common Design Pine Sizes (mm):
F7 F7 Strength Grade – GL8 Strength Grade – GL8 Strength Grade – GL10
66 × 30 ° 66 × 42 ° 66 × 66 ˆ 140 × 65 ¤ 140 × 65 ¤
90 × 30 ° 90 × 42 ° 88 × 66 ° 180 × 65 ¤ 180 × 65 ¤
138 × 30 ° 138 × 42 ° 88 × 88 240 × 65 ¤ 240 × 65 ¤
185 × 30 ° 185 × 42 ° 112 × 112 280 × 65 ¤ –
230 × 30 ° 230 × 42 ° 135 × 135– 290 × 65 ¤
280 × 30 ° 280 × 42 ° 185 × 185 – 320 × 65 ¤
lengths (lin met):
2.4 3.0 3.6 ¤ 4.2 ¤° 4.8 ¤ ° 5.4 ¤ ˆ ° 6.0 ¤ 6.6 ¤
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Kiln Dried Hardwood

Supplied with a machine finish, uniform sizing and a minimum strength grade of F17 making it suitable for heavy construction and load bearing applications.

Generally F17 & F27 KD Hardwood is supplied in a mix of Class 1 & 2 species.

F17 can be supplied in class 3 (only for interior usage).

F27 is available on request in Class 1 species (Blackbutt & Merbau) only.

View Available Sizes ››

Common Kiln Dried Hardwood Sizes (mm):
70 × 35 90 × 35 120 × 35 140 × 35 190 × 35 240 × 35 290 × 35
70 × 45 90 × 45 120 × 45 140 × 45 190 × 45 240 × 45 290 × 45
lengths (lin met):
2.4 2.7 3.0 3.6 4.2 4.8 5.4 6.0
strength grades:
F17 F22 F27

Special widths 220mm & 270mm are also available on request.

Special lengths 3.3, 3.9, 4.5, 5.1 & 5.7 are also available on request.

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Hardwood Unseasoned

Supplied unseasoned, sawn or dressed. Large section sizes are available to order including highly durable species such as Grey Box, Grey Gum, Spotted Gum, Blackbutt, Ironbark, Tallowwood, Turpentine & Blackbutt.

Further treatment & special milling can be applied to unseasoned hardwood.

View Available Sizes ››

Common Hardwood Sizes (mm):
50 × 25 75 × 25 100 × 25 – 150 × 25 – – –
50 × 38 75 × 38 100 × 38 – 150 × 38 – – –
50 × 50 75 × 50 100 × 50 125 × 50 150 × 50 200 × 50 250 × 50 300 × 50
– 75 × 75 100 × 75 125 × 75 150 × 75 200 × 75 250 × 75 300 × 75
– – 100 × 100 125 × 100 150 × 100 200 × 100 250 × 100 300 × 100
– – – 125 × 125 150 × 125 –– –
– – – – 150 × 150 – – –

Section sizes up to 450 × 450 can be available upon request. please contact us for availability

lengths (lin met):
2.4 2.7 3.0 3.6 4.2 4.8 5.4 6.0

Longer lengths can be available upon request. please contact us for availability

strength grades:
F11 F14 F17 F22
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Hyjoist

A lightweight engineered solution to flooring applications. Made from plantation pine and supplied treated to protect against Termites.

Long lengths are available up to 13.2 met.

View Available Sizes ››

Common Hyjoist Sizes (mm):
200 × 45 240 × 45 300 × 45 – –
– 240 × 63 300 × 63 360 × 63 –
– 240 × 90 300 × 90 360 × 90 400 × 90

For comprehensive information on Hyjoist including span tables visit Dindas Lew

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Hyspan

An excellent alternative to using Hardwood or Steel. Hyspan is engineered using layers of timber veneer and bonded together with a external grade glue.

Long lengths and large sections are available.

Hyspan can be supplied treated h2 to protect against Termite attack.

This product is suitable for where a single span is required.

View Available Sizes ››

Common Hyspan Sizes (mm):
95 × 36 130 × 36 150 × 36 170 × 36 200 × 36 240 × 36 – – – – –
95 × 45 130 × 45 150 × 45 170 × 45 200 × 45 240 × 45 300 × 45 360 × 45 400 × 45 – –
95 × 63 130 × 63 150 × 63 170 × 63 200 × 63 240 × 63 300 × 63 360 × 63 400 × 63 450 × 63 600 × 63
– – 150 × 75 – – – 300 × 75 – 400 × 75 525 × 75 600 × 75

For comprehensive information on Hyspan including span tables visit Dindas Lew

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Kiln Dried Oregon

Imported from North America. This product is supplied Kiln Dried and machine finished.

Although sold as a structural product, Kiln Dried Oregon is an excellent solution where exposed beams/joists are required for aesthetic applications.

We can supply this product plated where lengths longer than 6.0met are required.

View Available Sizes ››

Common Kiln Dried Oregon Sizes (mm):
90 × 45 140 × 45 190 × 45 240 × 45 290 × 45
lengths (lin met):
2.4 2.7 3.0 3.6 4.2 4.8 5.4 6.0
strength grades:
MGP10
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Oregon

Imported from North America. This product is supplied unseasoned with a sawn finish. Oregon is a high quality construction timber available in large section sizes and long lengths.

Harper Timber can also supply Oregon dressed to order.

View Available Sizes ››

Common Oregon Sizes (mm):
50 × 25 75 × 25 100 × 25 150 × 25 200 × 25 – –
50 × 38 75 × 38 100 × 38 150 × 38 200 × 38 – –
50 × 50 75 × 50 100 × 50 150 × 50 200 × 50 250 × 50 300 × 50
– 75 × 75 100 × 75 150 × 75 200 × 75 250 × 75 300 × 75
– – 100 × 100 150 × 100 – – 300 × 100
– – – – – – –
– – – 150 × 150 200 × 150 250 × 150 300 × 150
– – – – – – –
– – – – 200 × 200 250 × 200 300 × 200
– – – – – – –
– – – – – 250 × 250 300 × 250
– – – – – – 300 × 300

Other sizes can be available upon request. please contact us for availability

lengths (lin met):
2.4 2.7 3.0 3.6 4.2 4.8 5.4 6.0 6.6 7.2

Longer lengths up to 7.8 met can be available upon request. please contact us for availability

Plating is also available for long lengths.

strength grades:
F5 F7 F8 F11 F14
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MGP Pine

Supplied Kiln Dried and machine finished. Australian plantation grown machine graded pine is cost effective and widely used today.

View Available Sizes ››

Common MGP Pine Sizes (mm):
70 × 35 90 × 35 120 × 35 140 × 35 190 × 35
70 × 45 90 × 45 – 140 × 45 190 × 45
– 90 × 70 – – –
– 90 × 90 – – –
lengths (lin met):
2.4 2.7 3.0 3.6 4.2 4.8 5.4 6.0

Note: 3.3, 3.9 & 4.5 lengths are available on request.

Fabrication (plating) is available where lengths greater than 6.0 met are required.

MGP Pine can also be supplied h2 to protect against termite attack.

strength grades:
MGP10 (similar to F5) MGP12 (similar to F8) MGP15 (similar F11)
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RH Pine (Untreated)

Supplied Kiln Dried and machine finished. Plantation Pine RH is generally utilised in roofing and floor joist applications. Note: This product is suitable for indoor applications only.

View Available Sizes ››

Common RH Pine Sizes (mm):
140 × 45 190 × 45 240 × 45 290 × 45
lengths (lin met):
2.4 2.7 3.0 3.6 4.2 4.8 5.4 6.0
strength grades:
F5 F7 MGP10
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Treated Pine H3 Rougherhead

Supplied Kiln Dried, machine finished and treated for termite and decay protection. Treated Pine is suitable for exterior usage such as decking and pergola applications.

Note: A minimum hazard level of H4 must be used for all inground applications such as posts.

View Available Sizes ››

Common Treated Pine Sizes (mm):
42 × 19 70 × 19 90 × 19 – – – –
– 70 × 35 90 × 35 140 × 35 – – –
– 70 × 45 90 × 45 140 × 45 190 × 45 240 × 45 290 × 45
– – 90 × 70 140 × 70 190 × 70 240 × 70 290 × 70
– – 90 × 90 140 × 90 – – –

90 x 90 is available in both H3 laminated & H4 solid.

lengths (lin met):
2.4 3.0 3.6 4.2 4.8 5.4 6.0
strength grades:
F7
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