Pilularis Blackbutt

A moderate to large tree, attaining 40 to 60 m in height and 1 to 2 m in stem diameter. It has a straight slender trunk, circular in cross-section. The bark on the lower part of the trunk is dark grey-brown in colour, fibrous and fissured. Typical smooth gum-type bark occurs on branches and the uppermost part of the trunk. The heartwood is pale brown with a faint tinge of pink when freshly cut. Sometimes the sapwood is indistinguishable from the heartwood but usually, it is slightly paler in colour.

  • Grain: Moderately coarse textured and uniform.
  • Texture: Open and uniform. Grain straight but occasionally slightly interlocked and in some cases, it has a greasy appearance and feel.
  • Vessels: Medium to large in size, often arranged in oblique chains. Vessel lines are prominent on dressed longitudinal surfaces.
Details
  • Category
    Timber, Wall Panels & Cladding , Timber Flooring
Specifications

Botanical Name
Eucalyptus Pilulariszz

Origin
South Eastern Australia

Scope of use

Interior

  • Furniture
  • Flooring
  • Mouldings 

Exterior

  • Structure
  • Furniture
  • Doors/Windows
  • Heavy Construction
  • Wall/Cladding
  • Mouldings
Features

Engineering
As sawn or round timber in wharf and bridge construction, railway sleepers, cross-arms, poles, piles, and mining timbers. Not recommended for poles in-ground in pole frame house construction. 

Construction
As unseasoned, sawn timber in general house framing, fascia and barge boards and as seasoned dressed cladding, internal and external flooring, lining and joinery. Also in fencing, landscaping and retaining walls. 

Decorative
Internal quality furniture, outdoor furniture, turnery, parquetry. 

Others
Boat building (keel and framing components planking, decking), coach, vehicle and carriage building, agricultural machinery, structural plywood, hardboard.

Overview

Certifications Available
PEFC/40-31-26 Promoting Sustainable Forest Management

Working Qualities
Care needs to be taken when drying as the blackbutt is prone to surface checking on the tangential surface. Blackbutt should not be re-conditioned as this will widen any surface checks. Blackbutt can be stained, painted or polished but there can be issues with painting because of its tendency to surface check. The high extractives of mature wood can cause problems with some adhesives, but this is much less of an issue with young regrowth wood. These extractives can also cause staining on painted surfaces after exposure to the weather. Blackbutt machines well but is only fair for steam bending.

Uses
Engineering. As sawn or round timber in wharf and bridge construction, railway sleepers, cross-arms, poles, piles, mining timbers. Not recommended for poles in-ground in pole frame house construction. Construction. As unseasoned, sawn timber in general house framing, fascia and barge boards and as seasoned dressed cladding, internal and external flooring, lining and joinery. Also in fencing, landscaping and retaining walls. Decorative. Internal quality furniture, outdoor furniture, turnery, parquetry. Others. Boat building (keel and framing components planking, decking), coach, vehicle and carriage building, agricultural machinery, structural plywood, hardboard.

Basic Info

Durability In Ground Moderately Durable

Durability Above Ground Very Durable 

Density Air Dry 900 kg/m3
Density Green 1100 kg/m3 

Shrinkage Radial 7.30 %
Shrinkage Tangental 4.30 %

Mechanical Properties

Janka Hardness 9.1 kN
Modulus of Rupture 144 MPa
Modulus of Elasticity 19 GPa
Max Crush Strength 77 MPa
Strength Group unseasoned S2
Strength Group Seasoned SD2 

NZAS Ignitability 13
NZAS Flame Spread 7
NZAS Heat Evolved 3
NZAS Smoke Developed <750

Get in touch
ITI Timspec is a wholesaler supplier for the Trade. For all non-trade pricing enquiries, please contact your preferred Timber supply Merchant.
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Timspec was established in 1990 as a wholesaler of specialty timber and was wholly New Zealand owned. In March 2019 Timspec was acquired by ITI Australia and became ITI Timspec LTD.  

Today we import, export, and wholesale a huge range of timber to builders, joiners, home owners, floor layers, landscape builders and furniture manufacturers. We pride ourselves on being environmentally responsible and strive to source the most sustainable timber options available. Timber stocked includes species from North America, South America, Europe, Africa, South East Asia, Australia, and New Zealand's exotic as well as indigenous species. 

The ITI Timspec team are extremely knowledgeable about the various types of timber, treatments and uses available and are happy to help you in choosing the right product for your project.