A premium grade which is clear on all four faces with the occasional minor blemish permissible as per N.Z. Timber Grading Rules NZS 3631:1988. Typical
end uses include mouldings, dressed boards, panelling, and products that require a stained finish.
An appearance grade, with sound tight knots and other natural defects as per N.Z. Timber Grading Rules NZS 3631:1988. Ideally suited where a paint finish is
required. Typical end uses include weatherboards and dressed boards.
Clear on three faces as per No.1 clears above, but the reverse face is allowed some natural defects or in allowance with the dressing grade guidelines.
Structural Grade 8 suitable for Lintels, floor joists, roof beams, general framing, trusses, decking joists, Verandah posts, Pergola and other
outdoor applications
Contains the core (pith) of the log and surrounding heavy heartwood zone. Grading allows any amount of pith, spiral grain, large knots, broken knots, spike and cluster knots. Grading allows cone hole, needle trace, resin pockets, moderate blue stain and wane on 50% of edges. Grading does not allow decay, broken and fallen knots bigger than half the width, heavy blue stain, and pieces of timber that do not hold together (are not structurally sound).
Contains the next layer of wood beyond the core of the log. Grading allows heartwood and any number of knots and defects which are generally sound and tight (inter-grown). Grading allows for a small amount of pith (less than 10% of the length), cone hole, needle trace, light to moderate resin, light blue stain and wane on up to 30% of the edge. Cluster and spike knots are allowed as long as structurally sound. Grading does not allow pith (greater than 10% of length), dead knots, decaying timber and broken pieces.
| H3.1 | Outside, above ground, periodic wetting but where the timber can dry out; some leaching, maintained paint system |
| H3.2 | Outside above ground, periodic wetting but where the timber can dry out; some leaching |
| H4 | In or on the ground subject to severe wetting and leaching |
| H5 | In or on the ground subject to severe wetting and leaching, with or in freshwater |
| WAT | Wet After Treatment |
| UT | Untreated |
| GS | Green Sawn |
| KD | Kiln Dried |
| R/S | Rough Sawn |
| DAR | Dressed |
| D4S | Dressed four sides |
| RHD | Rougher Headed |
| P/G | Planer Gauged |
| G/T | Grip Tread |
| T& G | Tongue & Groove |