Araucaria
Common Uses
| Baskets | Drawer sides | Matches |
| Beams | Excelsior | Millwork |
| Bedroom suites | Factory construction | Molding |
| Blockboard | Figured veneer | Office furniture |
| Boxes and crates | Fine furniture | Packing cases |
| Building construction | Floor lamps | Paneling |
| Building Materials | Flooring | Parquet flooring |
| Cabin construction | Food containers | Plywood |
| Cabinent making | Form work | Porch columns |
| Casks | Foundation posts | Pulp/Paper products |
| Chairs | Framing | Pulpwood |
| Chests | Furniture | Radio, stereo, TV |
| Concealed parts | Furniture components | Cabinents |
| Concrete formwork | or stock | Rustic furniture |
| Construction | Hatracks | Stools |
| Cooperages | Heavy construction | Sub-flooring |
| Cutting surfaces | Interior construction | Tables |
| Decks | Interior trim | Triming |
| Decorative plywood | Joinery | Truck bodies |
| Decorative veneer | Joists | Utlity furniture |
| Desks | Kitchen cabinents | Vehicle parts |
| Dining-room furniture | Light construction | Veneer |
| Domestic flooring | Living-room suites | Wainscoting |
| Dowel pins | Match boxes | Wardrobes |
Numerical Values
| Category | Green | Dry | Unit |
|---|---|---|---|
| Bending Strength | 7770 | 13367 | psi |
| Crushing Strength (Perp.) | -- | -- | psi |
| Max. Crushing Strength | 3998 | 7207 | psi |
| Impact Strength | 23 | 24 | inches |
| Stiffness | 1378 | 1548 | 1000 psi |
| Work to Maximum Load | 11 | 14 | in-lbs/in3 |
| Hardness | 780 | -- | lbs |
| Shearing Strength | 1970 | -- | psi |
| Toughness | -- | -- | in-lbs |
| Specific Gravity | 0.45 | 0.54 | -- |
| Weight | 33 | -- | lbs.cu.ft. |
| Density (Air-dry) | 34 | -- | lbs.cu.ft. |
| Radial Shrinkage. (G->OD) | 4% | -- | -- |
| Tangential Skrink. (G->OD) | 7% | -- | -- |
| Volumetric Shrink. (G->OD) | 12% | -- | -- |
Countries of Distribution
Argentina,
Brazil, and
Paraguay
Environmental Profile
The species is reported to be Vulnerable throughout its natural growth range. Although it may currently exist in large numbers, the long-term security of the species cannot be guaranteed because of very serious adverse environmental effects on its habitat (Source - World Conservation Monitoring Center-1992).
The species is also reported to be either very rare (21 to 100 occurrences) and local throughout its range, or is found locally (even abundantly at some of its locations) in a restricted range. It may also be vulnerable to extinction throughout its range because of other existing but unknown factors (Source - The Nature Conservancy - Rank of relative endangerment based mainly on the number of occurrences of the species worldwide).
Distribution
The species is reported to be native to southern Brazil, Paraguay, and parts of northern Argentina. It is especially prevalent in the state of Paraná in Brazil.
Product Sources
It is not known at present whether timber from this species is obtainable from sustainably managed or other environmentally responsible sources.
The timber is reported to be abundant in the countries where it grows, but its availability on the North American market is rather limited because of very high shipping costs. High shipping costs added to the price of the timber make Parana pine too expensive in comparison to domestic softwood species used for similar applications. It is rated in the moderate price range compared to other imports, but the price is substantially higher than North American softwoods of similar grade.
Supplies of Parana pine in long lengths, wide boards, and veneer form are also reported to be limited on the European market, with prices, when available, comparable to those of the more expensive softwoods.
Tree Data
The trees are reported to attain heights of 80 to 120 feet (24 to 37 m), with trunk diameters of up to 60 inches (150 cm). Boles are reported to be typically long and clear, and are well suited for timber production.
Sapwood Color
The sapwood ranges in color from orange-yellow to gray-yellow. It is reported to be similar to ponderosa pine in appearance, but it has a slight grayish or dirty hue.
Heartwood Color
The heartwood is pale brown in color, with a dark inner core. It is frequently streaked with bright red, or rusty red colors. Other sources describe the heartwood as beige to ochre brown beige in color, with purplish pink veins. Bright red streaks on a natural, soft brown background is reported to make the heartwood very attractive. Many small, tight knots, which are often present, add to the beauty of the wood without affecting its uses or properties.
Grain
Grain is typically straight.
Texture
The wood has a close, uniform texture, and barely visible growth rings. The texture has been compared to that of White pine (P. strobus).
Odor
The wood does not possess any characteristic odor or taste.
Luster
Wood surface is reported to be slightly lustrous.
Ease of Drying
Streaks of compression wood is reported to make Parana pine rather difficult to dry. Drying is reported to be slow and may be accompanied by excessive longitudinal shrinkage. Piles should be weighted to minimize warping. A prolonged conditioning period and regular moisture content checks are recommended to control variable drying rates.
Drying Defects
Darker colored material is reported to have a slight tendency to split and distort during drying. Streaks of abnormal wood tissue may promote warping and checking.
Kiln Schedules
T3 - D2 (4/4); T3 - D1 (8/4) US
Schedule D (4/4) United Kingdom
Movement in Service
Movement in use is reported to be moderate, but Parana pine has a high tendency to distort in response to changes in moisture content, and is one of a few timbers which shrink in length.
T/R Ratio - 1.75
This indicator is more meaningful if it is used together with actual shrinkage data in the tangential and radial directions (Refer to the Numerical Values window).
Natural Durability
The wood is not resistant to decay. It is reported to be vulnerable to attack by some insects, including powder post beetles, but is resistant to attack by other insects, including Anobium borers.
Resistance to Impregnation
The heartwood is reported to be moderately permeable to preservative treatment, but the sapwood is treatable.
Abnormal Wood Tissue
The wood may contain moderate levels of compression wood.
Cutting Resistance
Cutting resistance is reported to be low, but ripped or resawn boards may distort considerably if the material contains compression wood.
Blunting Effect
The wood exerts slight to moderate blunting effect on cutting tools.
Planing
The wood has been found to be easy to plane but it can distort considerably if compression wood is present.
Moulding
The wood can be moulded or shaped with minimum effort.
Gluing
Minimum gluing is reported to be required since wider stock is usually available. Gluing properties are, however, good.
Nailing
The wood nails well without pre-boring, and has excellent nail-holding qualities.
Sanding
The wood can be sanded easily to yield a smooth, clean surface.
Polishing
Polishing characteristics are reported to be good.
Staining
The material is reported to accept various types of stains well.
Varnishing
Parana pine responds equally well to a variety of finishes.
Painting
Painting characteristics are rated as very good.
Steam Bending
Steam bending properties are classified as poor.
Response to Hand Tools
The wood responds well to hand tools.
Strength Properties
Parana pine is reported to have higher strength and hardness properties than most softwoods. Bending strength of air-dried wood of the species is similar to that of Teak, which is considered to be strong. Strength in compression parallel to grain is in the high range. Other species in this range include Teak, White oak, and Hard maple. It is moderately hard and resistant to wearing and marring. Weight is medium, and it is as dense as Loblolly and Shortleaf pines, and just as strong. Its machining properties compare favorably with most North American softwoods, and it combines the strength and hardness of the Yellow pines with the easy working qualities of the White pines.
