Scaffolding Planks

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New Zealand Forestry Corp produces a range of scaffolding planks, ranging in size from 1.2m to 3.9m. The scaffolding planks are cut from knot free, grade A, New Zealand Pinus Radiata. The ends are steel capped to offer the best protection from damage. All planks are dried to 12% moisture content and are treated to H3.1 specification to ensure a long life.


NZFC scaffolding planks can be marked with our client’s names and colours - when ordered by container loads. All our scaffolding planks comply with AS/NZS 4357.
Each 20’ container holds 27m3 (25 tonne) of grade A scaffolding planks, and sells for NZ$9980.00 ($NZ$380/m3) plus freight, wharf and handling charges.
New Zealand Ministry of Agriculture and Forestry certification and fumigation is an extra charge and averages out at NZ$700.00. http://www.maf.govt.nz/forestry
Our Certificates of Origin are issued by the Auckland Chamber of Commerce. http://www.aucklandchamber.co.nz

Longer length scaffolding planks are available on special request, with the maximum length of 5.88m (fits 20’ container).

Australian Standard 1577-1993, for the manufacture of scaffolding planks.


Solid Wood Timber Planks


1.1.      SCOPE OF SECTION: This section specifies manufacturing requirements for one-piece softwood and hardwood timber planks.
1.2.      TIMBER SPECIES: Hardwood and softwood timber species shall be strength group 6 or better, in accordance with AS 2878.
1.3.      MOISTURE CONTENT:
1.3.1 Softwoods: Softwood planks shall be seasoned. i.e., moisture content of the plank shall not exceed 15%, when measured in accordance with AS1080.1.

1.4.      SURFACE FINISH: The planks shall have a face finished surface with roughness not less than a sawn finish, and a sawn or dressed finish surface on the edges. The surface shall not be treated with paint or other material which would obscure the grain, except that colour identification bands not exceeding 100mm may be painted on at positions commencing not less than 300mm from the ends of the plank.

1.5.      THICKNESS OF PLANK
1.5.1 Softwoods: The minimum thickness of a softwood plank, at a moisture content not exceeding 15 percent, shall be 38mm (NOTE: All NZFC planks are 45mm thick and 230mm wide).
1.6       GRADING
1.6.1. General: Solid timber planks shall be visually or mechanically graded.
1.6.2. SOFTWOODS: Visually graded softwood planks shall be of sound wood showing not less than four growth rings per 25mm and shall be truly sawn. The timber shall be free from compression failure, loose or encased knots and holes exceeding 20mm diameter, and pith. The following imperfections shall be permitted.

(a) Knots, sound and inter-grown – not exceeding one-sixth the width of the surface on which they occur, and provided knots of maximum permissible size are spaced not less that 450mm apart. Groups of small knots shall be permitted, provided the aggregate width of the group in any 450mm length of plank does not exceed 50mm.
(b) Slope of grain: - not exceeding 1 in 12 when measured over a distance of not less than 300mm.
(c) Bow and spring: - bow not exceeding 1mm per 300mm length of plank, and spring not exceeding 1mm per 600mm of length of plank.
(d) Twist: - not exceeding 1mm per 600mm length of plank, to a maximum of 8mm.
(e) End splits: - not exceeding 150mm individually and not more than 200mm in total at each end.
(f) Checks: - not exceeding 300mm long and 3mm wide.
(g) Resin and bark pockets: - not exceeding 300mm long and 3mm wide.
(h) Resin Streaks: - unlimited.
(i) Want or wane: - not exceeding (width + thickness) 20, in millimetres, or on any one edge or face.
1.6.3 Mechanical grading
1.6.3.1 General: This Clause specifies the moduli of elasticity and the visual grading requirements for mechanically graded softwoods and hardwood solid timber scaffold planks to ensure performance comparable with that anticipated from planks visually graded in accordance with Clause 1.6.2.
1.6.3.2. Grading machine: The mechanical grading machine and operation shall be in accordance with AS1748 and AS1749.
1.6.3.3 Stiffness requirement: - Softwoods and seasoned hardwood planks of strength groups SD5 and SD6 when tested throughout their length over spans of 900mm shall have a minimum modulus of elasticity of not less than 7600MPa.
1.6.3.4 Grading of ends: As the end sections of planks cannot be effectively machine graded, they shall be inspected to ensure that no imperfection or combination of imperfections, of worse appearance than permitted elsewhere in the plank is present.
1.7 End Treatment: The ends of each solid timber scaffold lank shall have a metal, timber or plastic piece fixed to the plank to restrain end splitting.

All NZFC scaffolding planks are subject to the following tests and certification before dispatch from the factory:

  1. Moisture content: All NZFC scaffolding planks are dried to a moisture content of  > 12%
  2. All NZFC scaffolding planks are treated to H 3.1 standards, making them suitable for unprotected use outside in all weathers.
  3. All NZFC scaffolding planks have a slip resistant surface and are individually slip tested - using the procedures set down in Appendix D of Australian Standard AS 1577-1993.
  4. All NZFC scaffolding planks are subject to a sliding test, using a static 100kg weight – as specified in Appendix C of Australian Standard AS 1577-1993.
  5. All NZFC scaffolding planks are subject to a strength test of 100N for 1 min, and then to 15 minutes. 1 in 100 planks are randomly selected and tested to destruction – as specified in Appendix B of Australian Standard AS 1577-1993.
  6. All NZFC scaffolding planks are subject to a stiffness test using a 100 Newton load, and measured for deflection – as specified in Appendix A of Australian Standard AS 1577-1993.
  7. All NZFC scaffolding planks are fitted with galvanized steel end-caps, which feature NZFC’s details, manufacturing batch numbers, and the test results as specified above.
NZFC scaffolding planks have a thickness of 44mm and a width of 230mm. The extra size allows for greater strength and a lower defection. The serrated finish increased the slip resistance – making NZFC scaffolding planks the safest on the world market.