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Pine, Celery Top

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Celery top pine is a strong, durable and attractive softwood that grows in Tasmania, and is available there and in Victoria. It is a rare wood and available only from specialist timber retailers.

The heartwood of celery top pine is pale yellow to pale brown, which darkens to gold as the heartwood ages. The sapwood is narrow and not readily distinguishable. The texture is fine and even and the grain is usually straight, and the growth rings are conspicuous and very close together.  In timber from smaller trees there are a large number of knots. The heartwood is durable below and above ground, though it is susceptible to the lyctid borer and is not termite resistant.

The strength, durability and ease of working of celery top pine have made it popular in the making of vats (specially for acid storage), garden furniture, joinery, kitchen utensils, turnery, carving, and in boat building.

 

Appearance

Celery top pine’s sapwood is narrow and not readily distinguishable. The heartwood is pale yellow to pale brown, which darkens to gold as the heartwood ages. In timber from smaller trees there is a large number of knots. The texture is fine and even and the grain is usually straight, and the growth rings are conspicuous and very close together. 

Common Applications

Celery top pine’s strength, durability and ease of working have historically made it popular for boat building, cladding and paneling benchtops, flooring, decking, joinery, furniture, beams and poles. It is also used for vats, with its toughness making it useful for the storage of acids.

Common Form

Sawn

Workability

Celery top pine is easily worked. It drills cleanly to size, bends and turns well planes well with the grain, and accepts varnishes, paints and stains without difficulty. It may need predrilling as it can be hard to nail when seasoned.

Origin of Timber

TAS

Availability - Further Information

Celery top pine is rare and only available from specialty timber dealers in Tasmania and to a lesser extent in Victoria.

Availability - Further Information

Native Forest

Shrinkage

Very Low Low Medium High Very High

Tangential :

3.10%

Radial:

1.60%

Unit Movement Tangential:

0.19%

Unit Movement Radial:

0.11%

Strength Group

Very High

High

Reasonably High

Medium High

Medium

Reasonably Low

Low

Very Low

Unseasoned:

S1

S2

S3

S4

S5

S6

S7

Seasoned:

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

Stress Grade

Structural
No. 1
Structural
No. 2
Structural
No. 3
Structural
No. 4
Structural
No. 5

Unseasoned:

F14

F11

F8

F7

F5

Seasoned:

F17

F14

F11

F8

F7

Density per Standard

Seasoned:

645kg/m3

Unseasoned:

1050kg/m3

Joint Group

Very High

High

Reasonably High

Medium

Low

Very Low

Unseasoned:

J1

J2

J3

J4

J5

J6

Seasoned:

JD1

JD2

JD3

JD4

JD5

JD6

Colour

  White, yellow, pale straw to light brown Pink to pink brown Light to dark red Brown, chocolate, mottled or streaky
   

Mechanical Properties

Modulus of Rupture - Unseasoned:

69

Modulus of Rupture - Seasoned:

98

Modulus of Elasticity - Unseasoned:

9.4

Modulus of Elasticity - Seasoned:

12

Maximum Crushing Strength - Unseasoned:

36

Maximum Crushing Strength - Seasoned:

56

Impact - Unseasoned:

7.6

Impact - Seasoned:

6.5

Toughness - Unseasoned:

Toughness - Seasoned:

Hardness - Unseasoned:

3.9

Hardness - Seasoned:

4.5

Durability

Low Moderate Reasonably High High
(0 - 5 yrs) (5 - 15 yrs) (15 - 25 yrs) (more than 25 yrs)

In-Ground:

(0 - 7 yrs) (7 - 15 yrs) (15 - 40 yrs) (More than 40 yrs)

Above ground:

(0 - 20 yrs, usually < 5) (21 - 40 yrs) (41 - 64 yrs) (More than 60 yrs)

Marine Borer Resistance:

Lyctid Borer Susceptibility:

Not Susceptible

Lyctid Borer Susceptibility - Other:

Termite Resistance:

Resistant

Fire Properties

Critical Radiance Flux - Lower:

>2.2 and <4.5

Critical Radiance Flux - Higher:

>2.2 and <4.5

Smoke Development Rate:

<750
1 - non-combustible 2 - reasonably non-combustible 3 - slightly combustible 4 - combustible

Fire Properties Group
Number:

Group Number - Other:

3 if used on MDF or particleboard ≥12mm; veneer thickness 0.6-0.85mm

Average Specific Extinction Area:

<250

Bushfire Resistance:

Not Tested

Joinery

Timber joinery products offer a classic, unique and stylish touch to any interior or exterior design. The products are produced for a variety of internal applications including door and window frames, cabinetry, skirtings, mouldings and architraves. When looking to the outdoors, joinery products range from decorative eaves and posts to eye-catching railings.

Many timber species are suitable for joinery products and care should be taken in selecting the perfect timber for the particular product and its intended finish. Rare and exotic species such as Teak and Rosewood can generate pieces of outstanding beauty but material cost and availability are also important considerations.

Commercially available species like Tasmanian oak, Australian cypress, spotted gum and the like, often make the more practical choice, with the added benefit that they can be easily matched with other timber products within the building, like flooring.

Solid timber for joinery products is generally supplied as ‘clear finish grade' but ‘paint grade' options are available and these are usually comprised of a composite material like MDF or glulam.

A large number of specialist suppliers and producers offer the consumer extensive choice of profiles for all of the most common and popular joinery products. Choice is in many cases, limited only by imagination.

Cabinetry is often associated with joinery and most typically includes, cupboards, benches and other similar ‘built in' furniture. Like joinery, cabinetry is generally specified as either paint or clear finish grade and naturally for clear finish grade timbers, appearance and surface finish are critical in achieving a successful application.

 

Panelling, Interior

Internal panelling, also known as appearance boards and linings, is not just a practical means of covering one or more walls and ceilings in a building, its inclusion in a room's interior design can generate looks that are both dramatic and stylish. Internal paneling comes as either solid natural timber paneling or as sheets of engineered wood products that provide a durable and hardwearing surface for areas subject to high impact. As they typically function as appearance products they generally have no structural requirements. This guide describes the variety of panelling products available and outlines the straightforward process of installing them.

Mouldings

Timber mouldings add style, class and an elegant touch to any interior, offering a depth of beauty and warmth in a way only wood can. From period times to those more contemporary, timber mouldings have graced the most stylish and chic of interiors, decorating furniture, doors and windows. Decorative mouldings such as architraves, skirtings, cornices and ceiling roses remain an ever popular choice for designers seeking a finished result of beauty, style and quality. Like all timber products, mouldings are extremely versatile and durable, enhancing the aesthetics of any interior and functioning as the perfect finishing touch for designs with a focus on beauty and splendour.

Mouldings can be created from any commercially available species of timber and the moisture resistant wood product, MDF, is also a popular choice. When it comes to style and design, the sky is the limit with many suppliers offering custom matching to existing mouldings, as well as efficient supply of those that are individually designed. Installation is a breeze, with the majority of mouldings easily attached with a reputable wood adhesive. Finishes can be tailored by design requirements and the preferences of the end user, with mouldings commonly being both stained and/or painted.

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