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Structural Applications
Structural timber is graded for its load-bearing and load-carrying capacity in framing systems and in heavy construction, light commercial and residential applications. Southern Pine is acknowledged as the strongest structural lumber species for engineered and framing applications. In the Western species of American Softwoods the dominant species is Douglas Fir.
Structural timber products are generally bought, sold and specified for end use according to species combinations with design values assigned per species. Adjustment factors can be applied to structural timber to calculate the performance of different sized member in end use. These are published by various governmental agencies in destination countries.
American Softwoods comply with BS 5268 Pt 2: 1996 and EN 1912 "Structural Timber - Strength Classes."
Typical applications for ground uses and above ground contact structures include:
- Engineered multi-storey projects
- Roofs and trusses
- Playgrounds and leisure centres
- Roller coasters and fairground rides
- Railway tracks
- Large-scale commercial decking
