Douglas Fir & Hemlock
All our wooden ladders are made from Douglas Fir or Hemlock.
- Compression parallel to grain is a measure of a piece of wood’s
ability to resist a crushing force that is applied to the ends of a piece
of wood. In-grade tests prove Hemlock & Douglas Fir Wood can carry the
load making them an excellent choice.
- Studies prove that Hemlock holds nails and screws better than most other
species of wood.
- Douglas Fir and Hemlock are stiff woods.
- Douglas Fir and Hemlock are hard to break.
- Strength to Span – The inherent strength of Douglas Fir and Hemlock
also means that builders can now safely and with confidence design and build
wooden products and structures
- Douglas Fir and Hemlock can resist a crushing force
Globe Ladders & Manning Export only source wood from wood products association
members, recognised worldwide as a symbol of integrity, the Western Wood Products
Association’s grade stamp is a lumber buyer’s guide to lumber satisfaction.
This mark represents each WWPA Member mill’s commitment to consistently deliver
a wooden product which meets uniform quality standards, whether the wood is
intended for structural or appearance purposes.
|Common name||Botanical name||Density, g/cc||Density, lbs/cu.ft.||Modulus of rupture, air drykg/sq.mm.||Modulus of elasticity, air dry,kg/sq.mm.|
|Douglas fir (coast type)||Pseudotsuga taxifolia||0.512||31.96||8.44||1357.|
|Douglas fir (mountain type)||Pseudotsuga taxifolia||0.446||27.84||6.72||981.|
|Hemlock eastern||Tsuga canadensis||0.431||26.91||6.06||846.|
|Hemlock, mountain||Tsuga martensiana||0.480||29.97||6.95||797.|
|Hemlock, western||Tsuga heterophylla||0.432||26.97||6.51||1015.|
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of the products we supply.
Please contact us for a quotation.