Structural

Ridgewood supplies both seasoned and unseasoned structural hardwoods to meet a wide range of construction needs.

Unseasoned hardwoods are ideal for heavy-duty applications such as jetties, wharves, and bridges, while seasoned hardwoods provide greater stability and a refined appearance β€” perfect where both strength and presentation matter.

Filter
Name
Origin
  • All
  • Asia Pacific
  • Australia
  • New South Wales
  • New Zealand
  • Queensland
  • Western Australia
Durability
  • All
  • 1
  • 2
  • 3
  • 4
Suitability
  • All
  • Flooring
  • Joinery
  • Cabinets
  • Furniture
  • Decking
  • Staircase
  • Cladding
  • External
  • Structural

Abodo

Origin: New Zealand
Durability: 1
Suitability:
  • Cladding
  • Decking
  • External
  • Joinery

Abodo

Pinus Radiata

Abodo’s thermally modified timbers have proven their long-lasting quality, combining aesthetics, durability, and sustainability.

Suitability:

  • Cladding
  • Decking
  • External
  • Joinery
Density (kg/m3 dry)420
Specific Gravity0.45
Modulus of Rupture (MPa dry)79
Modulus of Elasticity (GPa dry)8
Radial Shrinkage % 2
Tangential Shrinkage %3
Hardness (Janka) (kN)3.1
FinishExcellent
StabilityGood
DurableYes
Sapwood Lyctid SusceptibleNo
MachiningExcellent
Resistance to Split in NailingGood
Resistance to Split in ScrewingFair
GluingGood
Growing Regionnew-zealand
AvailabilityWidely

Jarrah

Origin: Western Australia
Durability: 2
Suitability:
  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural

Jarrah

Eucalyptus Marginata

Heartwood is a rich dark brownish red, sometimes marked by short, dark brown radial flecks on the end grain and boat shaped flecks on flat sawn surfaces which enhance it’s decorative value.

The grain is usually straight but often interlocked or wavy. The texture is even but moderately coarse.

Also known as Western Australian Jarrah

Suitability:

  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural
Density (kg/m3 dry)820
Specific Gravity0.8
Modulus of Rupture (MPa dry)112
Modulus of Elasticity (GPa dry)13
Radial Shrinkage % 5
Tangential Shrinkage %8
Hardness (Janka) (kN)8.5
FinishGood
StabilityGood
DurableYes
Sapwood Lyctid SusceptibleYes
MachiningFair
Resistance to Split in NailingFair
Resistance to Split in ScrewingFair
GluingGood
Growing Regionwa
AvailabilityWidely

Blackbutt

Origin: New South Wales & Queensland
Durability: 1
Suitability:
  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural

Blackbutt

Eucalyptus Pilularis

Heartwood pale brown, but northern material may sometimes display a slight pinkish tinge. Sapwood distinctively paler.

Texture medium and even. Grain usually straight. Gum veins are common.

Suitability:

  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural
Density (kg/m3 dry)900
Specific Gravity0.9
Modulus of Rupture (MPa dry)144
Modulus of Elasticity (GPa dry)19
Radial Shrinkage % 4
Tangential Shrinkage %7
Hardness (Janka) (kN)9
FinishGood
StabilityGood
DurableYes
Sapwood Lyctid SusceptibleNo
MachiningGood
Resistance to Split in NailingGood
Resistance to Split in ScrewingGood
GluingPoor
Growing Regionnsw & qld
AvailabilityWidely

Spotted Gum

Origin: New South Wales & Queensland
Durability: 1
Suitability:
  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural

Spotted Gum

Corymbia Maculata, Corymbia Citrodora, Eucalyptus Henryi

Heartwood pale to dark brown or chocolate. Sapwood is distinctively paler but there maybe a zone of intermediate wood.

Texture moderately coarse. Grain variable, the frequent presence of wavy grain produces an attractive fiddleback figure.

Slightly greasy nature. Gum veins common. Northern material is usually slightly denser, stronger and more durable than southern.

Also known as Lemon Scented Gum.

Suitability:

  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural
Density (kg/m3 dry)950
Specific Gravity0.95
Modulus of Rupture (MPa dry)150
Modulus of Elasticity (GPa dry)23
Radial Shrinkage % 4.5
Tangential Shrinkage %6
Hardness (Janka) (kN)11
FinishGood
StabilityFair
DurableYes
Sapwood Lyctid SusceptibleYes
MachiningGood
Resistance to Split in NailingGood
Resistance to Split in ScrewingGood
GluingPoor
Growing Regionnsw & qld
AvailabilityAvailable

Merbau

Origin: Asia Pacific
Durability: 1
Suitability:
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural

Merbau

Instia Palembanica, Bijuga

Sapwood is well defined and pale yellow in colour. Heartwood is yellowish to orange brown when fresh, weathering to brown or dark red brown.

Grain is interlocked. Texture is coarse but even. Growth rings are distinct.

Vessels are often filled with a yellow or a white deposit. which is conspicuous on surface. The dark brown gummy substance readily leaches out in water.

Also known as Kwila.

Suitability:

  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural
Density (kg/m3 dry)830
Specific Gravity0.83
Modulus of Rupture (MPa dry)147
Modulus of Elasticity (GPa dry)18
Radial Shrinkage % 1.5
Tangential Shrinkage %2.5
Hardness (Janka) (kN)9
FinishGood
StabilityGood
DurableYes
Sapwood Lyctid SusceptibleYes
MachiningGood
Resistance to Split in NailingFair
Resistance to Split in ScrewingGood
GluingGood
Growing Regionapac
AvailabilityAvailable

Karri

Origin: Western Australia
Durability: 2
Suitability:
  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural

Karri

Eucalyptus Diversicolor

Heartwood is reddish brown, paler in colour than Jarrah when fresh, but maturing to a more uniform brown.

The grain is interlocked with some wavy grain, the texture is even and moderately coarse.

Suitability:

  • Cabinets
  • Cladding
  • Decking
  • External
  • Flooring
  • Furniture
  • Joinery
  • Staircase
  • Structural
Density (kg/m3 dry)900
Specific Gravity0.88
Modulus of Rupture (MPa dry)132
Modulus of Elasticity (GPa dry)19
Radial Shrinkage % 4.5
Tangential Shrinkage %10
Hardness (Janka) (kN)9
FinishGood
StabilityGood
Sapwood Lyctid SusceptibleNo
MachiningFair
Resistance to Split in NailingFair
Resistance to Split in ScrewingFair
GluingFair
Growing Regionwa
AvailabilityWidely