Lifecycle Database

Adhesives, fresh sawn softwood, galvanised steel sheet, kiln dried timber, planted softwood

Kiln Dried Sawn Hardwood

Kiln-dried hardwood is modelled as being produced from a broad mix of tree species.

Key Information

General Process Description 1m3 of kiln dried hardwood based on the UK consumption mix.
Reference Flow/
Declared Unit
1m3 of kiln dried hardwood, 12% moisture content (dry basis), average product density of 698kg/m3.
Reference Year 2013

This generic dataset has been developed with reference to CEN/TR 15941:2010 Environmental product declarations – Methodology for selection and use of generic data and has made use of data from existing databases and EPD, compensated with data from UK industry and national statistics for the specific situation related to UK consumption of timber products. With regard to methodology, the datasets are in line with the core Product Category Rules given in EN 15804+A1: 2013 Environmental product declarations – Core rules for the product category of construction products, and further detailed in FprEN 16485:2013 Round and sawn timber – Environmental Product Declarations – Product category rules for wood and wood-based products for use in construction and the draft EN 16449, Wood and wood-based products – Calculation of sequestration of atmospheric carbon dioxide.

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Fresh Sawn Softwood

Fresh sawn softwood is modelled as being produced from two species – Scots pine and European spruce.

Key Information

General Process Description 1m3 of fresh sawn softwood based on the UK consumption mix.
Reference Flow/
Declared Unit
1m3 of fresh sawn softwood, 60% moisture content (dry basis), average product density of 672kg/m3.
Reference Year 2013

This generic dataset has been developed with reference to CEN/TR 15941:2010 Environmental product declarations – Methodology for selection and use of generic data and has made use of data from existing databases and EPD, compensated with data from UK industry and national statistics for the specific situation related to UK consumption of timber products. With regard to methodology, the datasets are in line with the core Product Category Rules given in EN 15804+A1: 2013 Environmental product declarations – Core rules for the product category of construction products, and further detailed in FprEN 16485:2013 Round and sawn timber – Environmental Product Declarations – Product category rules for wood and wood-based products for use in construction and the draft EN 16449, Wood and wood-based products – Calculation of sequestration of atmospheric carbon dioxide.

For more detailed information:

Kiln Dried Sawn Softwood

Kiln-dried softwood is modelled as being produced from two species – Scots pine and European spruce.

Key Information

General Process Description 1m3 of kiln dried softwood based on the UK consumption mix.
Reference Flow/
Declared Unit
1m3 of kiln dried softwood, 15% moisture content (dry basis), average product density of 483kg/m3.
Reference Year 2013

This generic dataset has been developed with reference to CEN/TR 15941:2010 Environmental product declarations – Methodology for selection and use of generic data and has made use of data from existing databases and EPD, compensated with data from UK industry and national statistics for the specific situation related to UK consumption of timber products. With regard to methodology, the datasets are in line with the core Product Category Rules given in EN 15804+A1: 2013 Environmental product declarations – Core rules for the product category of construction products, and further detailed in FprEN 16485:2013 Round and sawn timber – Environmental Product Declarations – Product category rules for wood and wood-based products for use in construction and the draft EN 16449, Wood and wood-based products – Calculation of sequestration of atmospheric carbon dioxide.

For more detailed information:

Galvanised Steel Sheet

Hot dip galvanised steel sheets are commonly used within timber structures as general fixings, connector plates, joist webs or hangers. This dataset provides indicative results for the impact of galvanised steel sheet used within a timber structure.

Key Information

General Process Description 1kg of hot dip galvanised steel sheet for use in timber structures as fixings, connector plates, joist webs or hangers.
Reference Flow/
Declared Unit
1kg of hot dip galvanized steel.
Reference Year 2013

For more detailed information:

Planed Softwood

Planed kin dried softwood is modelled as being produced from two species – Scots pine and European spruce.

Key Information

General Process Description 1m3 of planed kiln dried softwood based on the UK consumption mix.
Reference Flow/
Declared Unit
1m3 of planed kiln dried softwood, 15% moisture content (dry basis), average product density of 482kg/m3.
Reference Year 2013

This generic dataset has been developed with reference to CEN/TR 15941:2010 Environmental product declarations – Methodology for selection and use of generic data and has made use of data from existing databases and EPD, compensated with data from UK industry and national statistics for the specific situation related to UK consumption of timber products. With regard to methodology, the datasets are in line with the core Product Category Rules given in EN 15804+A1: 2013 Environmental product declarations – Core rules for the product category of construction products, and further detailed in FprEN 16485:2013 Round and sawn timber – Environmental Product Declarations – Product category rules for wood and wood-based products for use in construction and the draft EN 16449, Wood and wood-based products – Calculation of sequestration of atmospheric carbon dioxide.

For more detailed information:

Adhesive Mix

This dataset provides indicative results for wood adhesive based on a representative mix of widely-used adhesive types. 

Key Information

General Process Description 1kg of wood adhesive including urea formaldehyde (UF), polyvinyl acetate (PVA), phenol formaldehyde (PF), phenol resorcinol formaldehyde (PRF), melamine urea formaldehyde (MUF), polyurethane (PUR) and emulsion polymer isocyanate (EPI).
Reference Flow/
Declared Unit
1kg of mixed wood adhesives.
Reference Year 2013

A wide range of wood adhesives are available on the market, each with different characteristics and areas of application. This dataset provides indicative results for wood adhesive based on a representative mix of widely-used adhesive types, including: Polyvinyl acetate (PVA), Urea formaldehyde (UF), Phenol formaldehyde (PF), Phenol resorcinol formaldehyde (PRF), Melamine urea formaldehyde (MUF), Polyurethane (PUR) and Emulsion polymer isocyanate (EPI).

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User Guide

An overview of the lifecycle assessment work

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Answers to your frequently asked questions

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Glossary

Definitions of commonly used terms

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