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Sprucelam is an untreated engineered timber product suitable for use as a structural element where the risk of exposure to moisture is minimised. Manufactured from Picea abies, commonly referred to as Spruce, or Norwegian Spruce.

It is available with grade characteristic design values equivalent to GL12, GL10 and GL8.

Key Features
  • Grown in Europe, and commonly used in construction, and to create durable, engineered structural wood products
  • Creamy white in appearance with a hint of yellow and/or red
  • Fine, even texture and a consistently straight grain
  • Durability of Spruce heartwood is equivalent to that of Douglas Fir
Structural Timber
NZ Made
NZ Made
NZ-Owned Business
NZ-Owned Business
Scope of Use

Techlam supplies Sprucelam for use as a structural element located within the external envelope of a building or where it forms part of the external structure subject to the same controls applied to untreated Douglas Fir.

Where used as part of the external structure the following scope applies:

  • In new buildings designed and construction to NZS3604:2011or specifically engineered to NZS3603:1993.
  • In existing buildings where the designer and installer have determined that the existing building is suitable for the intended building work and that all other conditions have been met, and
  • In stand alone, single units less than 10m in building height, and
  • In all corrosion zones, subject to fixings in accordance with section 4, NZS3604:2011
  • Has a risk matrix score of no more than 6 on any external face, as defined in E2/AS1, and
  • Has a roof slope of 10° or more, and
  • If it has a skillion roof, the roofing material is corrugated iron or concrete, metal of clay tiles for adequate ventilation, and
  • Has eaves or 450mm-wide or more for single-storey buildings and eaves 600mm-wide or more for two storey buildings


Limitations on Use
  • Where used as an internal structural element, the Sprucelam must be left exposed
  • The use of Sprucelam must be specifically engineered to NZS3603:1993


Statement of Building Code Compliance

If designed, installed and maintained in accordance with all Techlam requirements, Sprucelam will comply with or contribute to compliance with the following provisions of the NZBC:  

  • B1 Structure, B1.3.1, B1.3.2, B1.3.3 (a, b, f, h, j, m, q) - Compliance by Alternative Solution AS/NZS1328:1998 (glulamination) NZS3603:1993A4 (timber structures), NZS3631:1998 (grading) and AS/NZS 5068:2006 (finger jointing).
  • B2 Durability, B2.3.1(a) - Compliance by B2/VM1 April 2017: Scion TE16-067 – Spruce & Radiata Pine Finger Joint Qualification test & Glue Bond Durability Test. March 2015: Scion Expert Opinion Durability of heartwood Spruce compared to durability of sap/heartwood Douglas fir
  • F2 Hazardous Building Materials, F2.3.1 — Compliance by In service history


In-Service History

Sprucelam products are being used across NZ and offshore in various interior structural projects. Structural laminated Spruce has been used extensively across Europe for many decades.

Other Performance Attributes

All Sprucelam products are manufactured and verified in accordance with the following New Zealand Standards:

  • AS/NZS1328:1998 (glulamination)
  • NZS3603:1993A4 (timber structures)
  • NZS3631:1998 (grading)
  • AS/NZS 5068:2006 (finger jointing)


B1 Structure compliant
B2 Durability compliant
F2 Hazardous Building Materials compliant
Hazardous Building Materials
F3 Hazardous Substances and Processes compliant
Hazardous Substances and Processes
Independent Assessment
Independent Assessment
Test Results
Test Results
Product Technical Statement
Techlam PASS Statements

Techlam NZ are a New Zealand glulam manufacturing facility, producing a range of engineered timber products.

Product Enquiries

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