Please note not all grades are offered by all sawmills!
All are listed for information only on nz standard grades.
Through good silviculture management, New Zealand pine logs come in a range of qualities capable of yielding lumber grades to meet almost any requirement.
for finishing and furniture uses can be either clear of knots or contain minor blemishes and tight knots.
Used primarily for construction where strength and stiffness are important. The main factor influencing a structural grade is the size and location of knots. Grades limit such defects to meet specified strength requirements.
Used in packaging for various products such as pallets, cable drums, and concrete formwork. Grades contain a range of knot sizes compatible with the final use.
New Zealand exporters are able to grade to most customer requirements.
No. 1 Clears
Suitable for mouldings, furniture, where clear, long lengths are required.
No. 2 Clears
Suitable for usage where one clear face, two clear edges are required.
Clear Finger Jointed
Suitable for usage where timber is to be painted. e.g. sills, fascia, windows, or selected use where a clear finish is required.
A tight knot grade for use in furniture, paneling, and high quality exterior use.
No 1A Cuttings Grade
Each piece shall yield one 1.8 metre clear cutting, with balance of cuttings averaging 1.0 metre. Minimum of 70% recovery of clear cuttings.
No. 1 Cuttings Grade
Each piece shall yield 70% of its length in clear cuttings 1.0 metre and over.
No. 2 Cuttings Grade
Each piece shall yield 70% of its length in clear cuttings 0.600 metres and over.
No. 3 Cuttings Grade
Each piece shall yield 60% of its length in clear cuttings of 0.300 metres and over.
A general utility grade. Economically used for workshop and warehouse shelving, framing for upholstery furniture and fence palings.
Suitable for packaging, pallets and other industrial use.
Moulding & Better
No. 1 Shop
No. 2 Shop
25mm, 32mm, 38-40mm, 50mm, 75mm, 100mm
50mm, 75mm, 100mm, 125mm, 150mm, 200mm
1.8 metres to 6.0 metres.
Other Lengths by special request
Reference: NZ Pine Manufacturers Association
Solid timber from a domestic timber yard will normally contain about 17 per cent moisture (by weight). After a few weeks in a centrally heated house, the moisture will drop to 8-10 per cent. As a result, the wood will shrink slightly and may also develop a curve. The wider the board the greater the problem.
Preferably avert this problem altogether by buying from us with correct MC specified ie 8-12% standard but can be 6-10% on request.
The shrinkage takes place along the length of the annular growth rings which follow the circular shape of the tree trunk. In most cases the rings are much shorter near one face of the board than the other. The longer rings shrink most and the shorter least, causing the board to curve across its width.
The straighter the rings in a board, the less it will curve, so look for boards that have the rings running almost vertically through the thickness. CALLED QUARTER SAWN. Where growth rings show running across the width of the board this is called FLATSAWN.
No matter how carefully something is made, wood that is too wet will develop distortions. So store timber in house for at least two or three weeks to allow it to dry out. OR EQUALISE .
Store boards flat, one above the other, with pieces of wood between them so that air can circulate.