The specialist for fastening technology

 
 
 

Quick and clear information!

As well as a suitable fastening system, above all good planning and professional assembly are essential for long-lived, low-maintenance deck construction. Not all timber is the same: as well as aesthetics and price, it is advisable to weigh up the technological properties against one another. A timber with very high durability and an astoundingly beautiful exterior can, for example, have only moderate dimensional stability and may not be suited for indirect, hidden fastening.

This overview of the most common deck timbers might assist you in your considerations.

Robina, False Acacia

Robinia pseudoacacia

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • High strength and hardness
  • High durability
  • Largely sourced from sustainable forestry
  • Substitute for tropical timber
  • Moderate dimensional stability

Walaba

Eperua spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • High strength and hardness
  • Low swelling and shrinking
  • Good dimensional stability
  • No washouts
  • Very high durability
  • Timber from reservoirs means no destruction of primeval forest

Acetylated wood

Various types of timber - Attributes dependent on product/manufacturer

more information
  • Good dimensional stability
  • High durability
  • Largely sourced from sustainable forestry
  • Very low swelling and shrinkage
  • Substitute for tropical timber
  • Not for structural applications
  • Moderate hardness
  • Surface made brittle by thermal treatment

Almendrillo

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
more information
  • Good finishing
  • Oiled
  • Slow drying

Bangkirai

Yellow Balau Shorea spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • High strength
  • High durability
  • High hardness
  • Possible erosion of constituent substances in the timber
  • Often originates from overexploitation (use only certified timber wherever possible)

Courbaril, Jatobá

Hymenea spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Extremely high strength
  • High durability
  • No washouts
  • Very high hardness
  • Often originates from overexploitation (use only certified timber wherever possible)
  • Moderate dimensional stability

Cumarú

Dipteryx spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Extremely high strength
  • Very high durability
  • Very high hardness
  • Possible erosion of constituent substances in the timber
  • Often originates from overexploitation (use only certified timber wherever possible)
  • Moderate dimensional stability

Douglas fir

Pseudotsuga menziesii

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Low swelling and shrinking
  • Good dimensional stability
  • Largely sourced from sustainable forestry
  • Substitute for tropical timber
  • Approved structural timber
  • Resin bleed possible
  • Moderate durability but sufficient for deck construction
  • Moderate hardness

Garapa

Apuleia spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • High strength
  • High durability (variable)
  • Very high hardness
  • Possible erosion of constituent substances in the timber
  • Often originates from overexploitation (use only certified timber wherever possible)
  • Moderate dimensional stability

Ipé

Lapacho, Tabebuia spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Extremely high strength
  • Good dimensional stability
  • High durability
  • Very high hardness
  • Approved structural timber
  • Often originates from overexploitation (use only certified timber wherever possible)

Kapur

Dryobalanops spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • High durability
  • Possible erosion of constituent substances in the timber
  • Moderate hardness
  • Often originates from overexploitation (use only certified timber wherever possible)
  • Moderate dimensional stability

Massaranduba

Manilkara spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Extremely high strength
  • High durability
  • High hardness
  • We consider permanent, secure fastening to be highly critical
  • Extremely low dimensional stability
  • Often originates from overexploitation (use only certified timber wherever possible)

Merbau

Intsia spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • High strength
  • Good dimensional stability
  • High durability
  • High hardness
  • Very low swelling and shrinkage
  • Possible erosion of constituent substances in the timber
  • Originates almost exclusively from overexploitation (certified timber barely available)

Morado

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Good finishing
  • Substitute for tropical timber
  • Oiled
  • Slow drying

Oak

Quercus robur, Quercus petraea

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Good dimensional stability
  • High durability
  • High hardness
  • Largely sourced from sustainable forestry
  • Substitute for tropical timber
  • Approved structural timber

Siberian larch

Larix sibirica

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Predominantly knot-free
  • Low swelling and shrinking
  • Approved structural timber
  • Resin bleed possible
  • Moderate hardness
  • Often originates from overexploitation, so questionable as a substitute for tropical timber (use only certified timber wherever possible)

Thermo Pine

Pinus sylvestris

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Low swelling and shrinking
  • High durability
  • Largely sourced from sustainable forestry
  • Very good dimensional stability
  • Substitute for tropical timber
  • Not for structural applications
  • Moderate hardness
  • Surface made brittle by thermal treatment

Thermotreated ash

Fraxinus spp.

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Low swelling and shrinking
  • High durability
  • Largely sourced from sustainable forestry
  • No washouts
  • Very good dimensional stability
  • Substitute for tropical timber
  • Not for structural applications
  • Moderate hardness
  • Surface made brittle by thermal treatment

Thermotreated beech

Fagus sylvatica

Techn. data good best
Bulk density
Compression strength
Bending strength
E-Modul
Durability
Stamina
Hardness
more information
  • Low swelling and shrinking
  • High durability
  • Largely sourced from sustainable forestry
  • No washouts
  • Very good dimensional stability
  • Substitute for tropical timber
  • Not for structural applications
  • Moderate hardness
  • Surface made brittle by thermal treatment

WPC

Wood-Plastic-Composite - Attributes dependent on product/manufacturer

more information
  • Barefoot board
  • Good construction wood with good dimensional stability
  • Largely sourced from sustainable forestry
  • No washouts
  • Substitute for tropical timber