Tenco is one of New Zealand’s largest exporters of forest products. We have built to this position since 1991 when the company was set up to export lumber to growing Asian export markets. Experience and reputation count; from small beginnings Tenco has become the largest independent exporter of New Zealand lumber and New Zealand’s 4th largest log exporter. Tenco has a regular shipping program of their own log vessels and in combination with these and other ships currently calls at 7 New Zealand ports (5 North Island and 2 South Island).
Tenco buys standing forests. Tenco currently has a number of forests which they purchased at harvestable age to log over a number of years for export and domestic markets. Tenco also regularly buys smaller tracts of forest to harvest immediately or immature forests to hold until harvest time. Tenco is interested in broadening the base of owners from whom it purchases forests and stands of trees. A deal with Tenco is a certain transaction. The owner and Tenco will agree on a value of the tree crop and then Tenco will pay this amount to the owner either in a lump sum amount or on rate per volume unit out-turn from the forest depending on the nature of the tree crop.
Tenco knows there are a lot of farmers who have trees that are close or ready to harvest and will be asking themselves how they should proceed with the sale of their trees. For some farmers the kind of certain transaction with money in the bank could well be appealing. Tenco is actively interested in buying harvestable forests or trees from areas including all the North Island (except the Gisborne and East Coast districts) and Nelson & Marlborough in the South Island .
If you own a forest in this area (16 years and older) and are ready to enter into this kind of agreement Tenco is interested to develop something with you.
Please contact: Josh.Bannan@tenco.co.nz
Work: +64 7 357 5356 Mobile: +64 21 921 595 www.tenco.co.nz
Specialty timbers, structural timber and the new building code
In March 2005, Standards NZ issued Amendment 4 to NZS 3603, introducing verified
With the recent release of NZS 3604:2011 all structural grades are now to be verified grades and have been renamed
This appears to follow on from a Commerce Commission cases involving Total Frame and Truss Limited and Carter Holt Harvey’s mislabelling of machine graded structural timber, where the companies knowingly sold machine graded timber that did not meet the required grades. In these cases claims made about machine graded timber products were misleading, and "those claims could not be easily verified by your average consumer" *. This is because machine grades do not have a visual basis. In contrast, visual grades can easily be verified by the consumer.
Expert structural engineers who were NZS 3604 committee members agree with industry that removal of the unverified No. 1 framing grade from NZS 3604 was unnecessary and counter-productive. There has been no reason given why SG 6 should require verification where it meets the visual No. 1 framing grading rules. The Department of Building and housing and the Minister for Building and Construction need to reconsider their stand and work with industry on this issue rather than engaging in stonewalling.
Characteristic stresses of specialty timber species
NZS 3604 and NZS 3603 apply only to radiata pine and Douglas fir. Fortunately, these Standards' provisions could be applied to other timber species. However, such use is subject to demonstration of adequate structural performance. Both NZS 3603 and NZS 3622 allow for determining characteristic stresses for grades of any timber, by testing a reference sample of timber on a species by species basis in accordance with AS/NZS 4063.1:2010.
The properties to initially evaluate for the reference sample include:
- Bending strength;
- Modulus of elasticity;
- Strength in tension; and
- Strength in compression
The initial evaluation shall:
- Identify the reference sample;
- Identify the sorting procedure;
- Identify the grades and sizes to which the procedure relates;
- Evaluate the properties of the sample according to the requirements of AS/NZS 4063 using appropriately calibrated equipment and appropriately trained staff under the supervision of an independent suitably qualified organisation;
- State or derive target bending strength and modulus of elasticity values for the grade/size combinations that the producer proposes supplying;
- State or derive machine threshold values and visual characteristics where the grading method is machine grading;
- State or define visual characteristics where the grading method is visual grading; and
- Document the evaluation in a report, copies of which shall be held by the audit organisation and the producer.
A Scion quote for this work is here. The cost per species is currently around $4200 + gst.
Where a timber design is not able to meet the requirements of NZS 3603 (e.g. using alternative timbers to radiata pine or Douglas fir) the building code allows for an "Alternative Solution". This also uses specific engineering design but must provide further evidence that the design will comply with the requirements of the building code. However because the building code now requires verified timber for structural applications, timber which cannot be verified (e.g. large beams or timber species other than radiata pine and Douglas fir) is not likely to be allowed by territorial authorities.