Collection: Shining Gum

Shining Gum (Eucalyptus nitens), a fast-growing Australian hardwood, is a popular choice for plantation forestry, especially in the cool temperate regions of Tasmania, New Zealand, South Africa, and Chile. Known for its straight bole and smooth, white or greyish bark, Shining Gum reaches impressive heights of up to 70 meters. Its timber, valued for construction and furniture, has a distinctive lustrous quality that adds elegance to interior applications.

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Appearance of Shining Gum Timber

True to its name, Shining Gum timber has a pale straw-colored heartwood with pink and yellow undertones, giving it a bright, polished appearance. The texture is moderately coarse, with a straight grain, and growth rings are prominent. While the sapwood is not always easy to distinguish, the timber often contains pin-hole borer marks and pencil streaks, adding a speckled character that is increasingly appreciated in furniture making.

Common Applications of Shining Gum Timber

Shining Gum is versatile, used in general construction for joinery, framing, flooring, and paneling. Its pale color allows it to be interchanged with Mountain Ash in applications where a light tone is desired. In furniture making, its natural markings and color variations add charm and uniqueness. The wood is also a good pulping species, though slightly lower density than other gums limits its pulp yield.

Durability of Shining Gum Timber

With a Class 4 durability rating, Shining Gum is not recommended for outdoor or in-ground use. Its heartwood is vulnerable to termites, and the sapwood is susceptible to Lyctid borer, making it better suited to interior, decorative, and non-structural uses.

Workability of Shining Gum Timber

Shining Gum is relatively easy to work with hand and machine tools, with a moderate hardness of 5.8 kN when dry. However, drying requires care, as the timber is prone to surface checking and cell collapse. Reconditioning is often necessary, and careful storage is advised to maintain quality. Shining Gum responds well to machining, bonding, and finishing, making it a reliable choice for high-quality interior projects.

Origin and Availability of Shining Gum Timber

Kosny Timber sources Shining Gum from commercial plantations and native forests in New South Wales and Victoria, ensuring a consistent supply for construction and furniture applications. Its popularity as a plantation timber makes Shining Gum readily available for a range of uses in these regions.

 Very LowLowMediumHighVery High
   Check mark Check mark
Tangential :    9.40%
Radial :    4.90%
Unit Movement Tangential:  0.33%  
Unit Movement Radial:  0.22%  

Very High

High

Reasonably High

Medium High

Medium

Reasonably Low

Low

Very Low

Unseasoned:

S1

S2

S3

S4

S5

S6

S7

S8

Check mark

Seasoned:

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

Check mark
 Structural
No. 1
Structural
No. 2
Structural
No. 3
Structural
No. 4
Structural
No. 5
Unseasoned:F14F11F8F7F5
Seasoned:F22F17F14F11F8

Very High

High

Reasonably High

Medium

Low

Very Low

Unseasoned:

J1

J2

J3

J4

J5

J6

Check mark

Seasoned:

JD1

JD2

JD3

JD4

JD5

JD6

Check mark
 White, yellow, pale straw to light brownPink to pink brownLight to dark redBrown, chocolate, mottled or streaky
  
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Modulus of Rupture - Unseasoned:62 MPa
Modulus of Rupture - Seasoned:99 MPa
Modulus of Elasticity - Unseasoned:10 GPa
Modulus of Elasticity - Seasoned:13 GPa
Maximum Crushing Strength - Unseasoned:31 MPa
Maximum Crushing Strength - Seasoned:58 MPa
Impact - Unseasoned:15 J
Impact - Seasoned:16 J
Toughness - Unseasoned:Medium - 15 - 24 Nm
Toughness - Seasoned:Medium - 15 - 24 Nm
Hardness - Unseasoned:4.8
Hardness - Seasoned:5.8
 LowModerateReasonably HighHigh
 (0 - 5 yrs)(5 - 15 yrs)(15 - 25 yrs)(more than 25 yrs)
In-Ground:Check mark   
 (0 - 7 yrs)(7 - 15 yrs)(15 - 40 yrs)(More than 40 yrs)
Above ground: Check mark  
 (0 - 20 yrs, usually < 5)(21 - 40 yrs)(41 - 64 yrs)(More than 60 yrs)
Marine Borer Resistance:Check mark   
Lyctid Borer Susceptibility:Susceptible
Lyctid Borer Susceptibility - Other: 
Termite Resistance:Resistant
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EFH Spread-of-Flame Index:         
EFH Smoke-Developed Index:         

Critical Radiance Flux - Lower:

>2.2 and <4.5

Critical Radiance Flux - Higher:

>2.2 and <4.5

Smoke Development Rate:

<750

1 - non-combustible2 - reasonably non-combustible3 - slightly combustible4 - combustible

Fire Properties Group
Number:

Average Specific Extinction Area:

<250

Bushfire Resistance:

BAL 12.5 and 19 – Door and window joinery only