Clicking
any heading in the main data area (at right) will scroll the page back
to this top position.
Use the following links to
jump to the associated section in the main data.
Blunting Effect
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Family Name
Gluing
Grain
Heartwood Color
Kiln Schedules
Luster
Movement in Service
Nailing
Natural Durability
Numerical Data
Painting
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Screwing
Staining
Steam Bending
Strength Properties
Texture
Trade Name
Tree Identification
Tree Size
Turning
| |
Common Names
New Zealand silver beech, Silver beech, Southland beech
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
New Zealand
Common Uses
Agricultural implements, Boat building (general), Boat building: framing, Boxes and crates, Brush backs & handles, Cabinetmaking, Cooperages, Flooring, Food containers, Furniture, Heavy construction, Light construction, Plywood, Tables, Tool handles, Toys, Turnery, Vehicle parts, Veneer: decorative
Heartwood Color
| Brown |
|
|
|
|
|
|
|
|
|
|
|
|
| Yellow |
|
|
|
|
|
|
|
|
|
|
|
|
| Red |
|
|
|
|
|
|
|
|
|
|
|
|
| Orange |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Pale red to pink |
|
|
|
|
|
|
|
|
|
|
|
|
| Brown |
|
|
|
|
|
|
|
|
|
|
|
|
| Pale brown |
|
|
|
|
|
|
|
|
|
|
|
|
| Reddish brown |
|
|
|
|
|
|
|
|
|
|
|
|
Sapwood Color
| Red |
|
|
|
|
|
|
|
|
|
|
|
|
| Brown |
|
|
|
|
|
|
|
|
|
|
|
|
| Yellow |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Paler than heartwood |
|
|
|
|
|
|
|
|
|
|
|
|
| White to yellow |
|
|
|
|
|
|
|
|
|
|
|
|
| Pinkish |
|
|
|
|
|
|
|
|
|
|
|
|
Grain
Texture
Luster
Natural Durability
| Durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Perishable |
|
|
|
|
|
|
|
|
|
|
|
|
| Moderately durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Non-durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Non-resistant to powder post beetles |
|
|
|
|
|
|
|
|
|
|
|
|
| Susceptible to insect attack |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Non durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Resistant to attack from powder post (Lyctid & Bostrychid) beetles |
|
|
|
|
|
|
|
|
|
|
|
|
| Susceptible to attack from powder post (Lyctid & Bostrychid) beetles |
|
|
|
|
|
|
|
|
|
|
|
|
| Pinworms (ambrosia beetles) often present in the standing tree |
|
|
|
|
|
|
|
|
|
|
|
|
| Pinworms (ambrosia beetles) may be present in the felled log |
|
|
|
|
|
|
|
|
|
|
|
|
Kiln Schedules
Drying Defects
| Slight end splitting |
|
|
|
|
|
|
|
|
|
|
|
|
| Moderate end spitting |
|
|
|
|
|
|
|
|
|
|
|
|
Ease of Drying
| Fairly Easy |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Easy |
|
|
|
|
|
|
|
|
|
|
|
|
| Moderate |
|
|
|
|
|
|
|
|
|
|
|
|
Tree Identification
| Bole/stem form is buttressed |
|
|
|
|
|
|
|
|
|
|
|
|
Tree Size
| Tree height is 10-20 m |
|
|
|
|
|
|
|
|
|
|
|
|
| Tree height is 20-30 m |
|
|
|
|
|
|
|
|
|
|
|
|
| Tree height is 30-40 m |
|
|
|
|
|
|
|
|
|
|
|
|
Comments
General finishing qualities are rated as good
Blunting Effect
| Blunting effect on machining is moderate |
|
|
|
|
|
|
|
|
|
|
|
|
Cutting Resistance
| Cutting Resistance with dry wood is easy |
|
|
|
|
|
|
|
|
|
|
|
|
Gluing
| Moderate gluing properties |
|
|
|
|
|
|
|
|
|
|
|
|
| Easy to glue |
|
|
|
|
|
|
|
|
|
|
|
|
Movement in Service
| Excellent Stability - Small Movement |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Stable |
|
|
|
|
|
|
|
|
|
|
|
|
Nailing
Planing
| Fairly Difficult to Very Difficult |
|
|
|
|
|
|
|
|
|
|
|
|
| Fairly Easy to Very Easy |
|
|
|
|
|
|
|
|
|
|
|
|
Resistance to Impregnation
| Heartwood is extremely resistant |
|
|
|
|
|
|
|
|
|
|
|
|
| Sapwood is permeable |
|
|
|
|
|
|
|
|
|
|
|
|
| Heartwood is resistant |
|
|
|
|
|
|
|
|
|
|
|
|
| Heartwood is moderately resistant |
|
|
|
|
|
|
|
|
|
|
|
|
Response to Hand Tools
| Easy to Work |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Easy to machine |
|
|
|
|
|
|
|
|
|
|
|
|
| Moderate working qualities |
|
|
|
|
|
|
|
|
|
|
|
|
Screwing
| Screwing yields satisfactory results |
|
|
|
|
|
|
|
|
|
|
|
|
Turning
Steam Bending
Painting
Polishing
Staining
| Finish is generally satisfactory |
|
|
|
|
|
|
|
|
|
|
|
|
| Finish is generally good |
|
|
|
|
|
|
|
|
|
|
|
|
Strength Properties
| Max. crushing strength = medium |
|
|
|
|
|
|
|
|
|
|
|
|
| Density (dry weight) = 31-37 lbs/cu. ft. |
|
|
|
|
|
|
|
|
|
|
|
|
| Modulus of Elasticity (stiffness) = low |
|
|
|
|
|
|
|
|
|
|
|
|
| Hardness (side grain) = soft |
|
|
|
|
|
|
|
|
|
|
|
|
| Bending strength (MOR) = low |
|
|
|
|
|
|
|
|
|
|
|
|
| Shearing strength (parallel to grain) = low |
|
|
|
|
|
|
|
|
|
|
|
|
| Bending strength (MOR) = medium |
|
|
|
|
|
|
|
|
|
|
|
|
| Bending strength (MOR) = high |
|
|
|
|
|
|
|
|
|
|
|
|
| Max. crushing strength = high |
|
|
|
|
|
|
|
|
|
|
|
|
| Hardness (side grain) = very soft |
|
|
|
|
|
|
|
|
|
|
|
|
| Density (dry weight) = 38-45 lbs/cu. ft. |
|
|
|
|
|
|
|
|
|
|
|
|
| Shrinkage, Tangential = fairly large |
|
|
|
|
|
|
|
|
|
|
|
|
| Shrinkage, Radial = moderate |
|
|
|
|
|
|
|
|
|
|
|
|
| Shearing strength (parallel to grain) = medium |
|
|
|
|
|
|
|
|
|
|
|
|
| Modulus of Elasticity (stiffness) = very low |
|
|
|
|
|
|
|
|
|
|
|
|
| Modulus of Elasticity (stiffness) = medium |
|
|
|
|
|
|
|
|
|
|
|
|
| Hardness (side grain) = medium |
|
|
|
|
|
|
|
|
|
|
|
|
| Density (dry weight) = 46-52 lbs/cu. ft. |
|
|
|
|
|
|
|
|
|
|
|
|
| Max. crushing strength = low |
|
|
|
|
|
|
|
|
|
|
|
|
| Density (dry weight) = 53-60 lbs/cu. ft |
|
|
|
|
|
|
|
|
|
|
|
|
| Density (dry weight) = 23-30 lbs/cu. ft. |
|
|
|
|
|
|
|
|
|
|
|
|
Numerical Data
| Item | Green | Dry | English |
| | | |
| Bending Strength | 8996 | 14020 | psi |
| Density | | 36 | lbs/ft3 |
| Hardness | | 936 | lbs |
| Maximum Crushing Strength | 4468 | 7025 | psi |
| Shearing Strength | | 1721 | psi |
| Stiffness | 1352 | 1565 | 1000 psi |
| Weight | 35 | 28 | lbs/ft3 |
| Radial Shrinkage | 4 | | % |
| Tangential Shrinkage | 9 | | % |
| | | |
| Item | Green | Dry | Metric |
| | | |
| Bending Strength | 632 | 985 | kg/cm2 |
| Density | | 576 | kg/m3 |
| Hardness | | 424 | kg |
| Maximum Crushing Strength | 314 | 493 | kg/cm2 |
| Shearing Strength | | 121 | kg/cm2 |
| Stiffness | 95 | 110 | 1000 kg/cm2 |
| Weight | 560 | 448 | kg/m3 |
| Radial Shrinkage | 4 | | % |
References
Bhat, R.V., Guhu, S.R.D.,1951,Indigeneous cellulosic raw materials for the production of pulp,,paper-board prt. II Semi-chemical and chemical pulps from Lannea grandis,(Jhingan,Indian Forester 77(9) pp568-85
Bier, H.,1983,The strength properties of small clear specimens of New Zealand-grown,timber,New Zealand Forest Service Forest Research Institute, FRI Bulletin No.41
Clifford, N.,1957,Timber Identification for the Builder and Architect,Leonard Hill (Books) LTD. London
Farmer, R.H.,1972,Handbook of Hardwoods,HMSO
Forest Products Research Laboratory, U.K.,1945,A Handbook of Empire Timbers,Department of Scientific and Industrial Research Forest Products Research
Forest Products Research Laboratory, U.K.,1967,The Steam Bending Properties of various timbers,Forest Products Research Laboratory, Princes Risborough, Leaflet,No.45
Forests Products Research Laboratory, U.K.,1956,A Handbook of Hardwoods,Forest Products Research Laboratory, Princes Risborough, Department of,Science and Industrial Research, Building Research Establishment
Kloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12
Kribs, D.A.,1950,Commercial and Foreign Woods on the American Market (a manual to their,structure, identification, uses and distribution,U.S.A. Penn. State College, Tropical Woods Laboratory
Redding, L.W.,1971,Resistance of Timbers to Impregnation with Creosote,Forest Products Research Laboratory, Princes Risborough, Building Research,Establishment Bulletin No.54 pp.43
Reid, J.S.,1953,Beech Timbers,New Zealand Forest Service Information Series No.17
Rendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. London
Smith, D.N.,1959,The Natural Durability of Timber,Forest Products Research Laboratory, Princes Risborough, Building Research,Establishment Record,No.30
Smith, S.W. and Entrican, A.R.,1957,Forestry in New Zealand,New Zealand Forest Service Information Series No.1
|
|