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Sawn Timbers

Structural Hardwoods

Structural hardwoods are used for various applications including coastal protection works, civil engineering projects, decking, cladding, street furniture and timber framed homes.

The choice of species for each application is dependent upon its natural properties: Balau, Greenheart and Ekki are all resistant to rot and marine borers – making them suitable for any job where the timber comes into contact with water, whereas Oak is ideal for timber framed houses and street furniture.

structural hardwoods
structural hardwoods
structural hardwoods
Cumaru
Botanical Name
Dipteryx spp
Origin
South America.
Brief Description
Colour: Yellow to medium-brown with an orange-pink tint
Grain: Straight
Texture:
Coarse
Uses
Marine and heavy construction, flooring, decking and cladding
Working Properties
Pre-drilling before nailing and screwing is required and a good finish can be achieved
Durability
Durable
Density
600 kg/m³
Ekki
ekki structural hardwood
Botanical Name
Lophira Alata.
Origin
West Africa.
Brief Description
Colour: Dark red to deep chocolate brown
Grain: Interlocked
Texture: Coarse and uneven
Uses
Marine and heavy construction work: including wharfs, bridges, decking, river pilings, lock gates, walkways, verandas, handrails and stairways
Working Properties
Difficult with hand tools but possible with machine tools, pre-boring necessary for nailing, glues satisfactorily and can be stained and polished normally
Durability
Very durable
Density
1025 kg/m³
European Oak
Botanical Name
Quercus Petraea and Robur.
Origin
UK and Europe (also Asia Minor and North Africa)
Brief Description
Colour: Yellowish brown (irregular/cross-grained material can occur)
Grain: Straight
Texture:
Medium to coarse
Uses
Continental oaks are preferred for furniture and cabinet making. English oak is best for garden furniture, boat building, gateposts, furniture, floors and construction work. Also: interior and exterior joinery, coffins, flooring, gates and fencing. For plywood manufacture it is rotary cut and when sliced creates a very attractively figured veneer.
Working Properties
Has a moderate to severe blunting effect on cutters, takes waxing, liming, fuming and polishing treatments very well filled and has very little shrinkage
Durability
Durable
Density
670-720 kg/m³
Garapa
garapa structural hardwood
Botanical Name
Apuleia Leiocarpa
Origin
South America
Brief Description
Colour:Honey-yellow with a slight ribbon aspect, it becomes light brown with age.
Grain: Straight to roey
Texture: Fine uniform
Uses
Flooring, decking and cladding
Working Properties
The wood glues easily and stays in place, saws, nails and screws well with only a slight blunting effect on tools
Durability
Durable
Density
830 kg/m³
Greenheart
greenheart structural hardwood
Botanical Name
Ocotea Rodiaei
Origin
Guyuna
Brief Description
Colour:Pale-rose sapwood with yellowy beige to sombre olive brown heartwood.
Grain: Straight to interlocked
Texture:
Fine and even
Uses
All Marine and heavy construction works, including piling, lock gates and bridges
Working Properties
Difficult to work, requires pre-boring for nailing and gluing results are variable, polishes to a good finish
Durability
Very durable
Density
1030 kg/m³
Ipe
ipe structural hardwood
Botanical Name
Tabebuia Serratifolia
Origin
Central and South America
Brief Description
Colour:Greyish white sapwood with light to dark olive brown heartwood
Grain: Straight to irregular
Texture: Fine
Uses
Used extensively for decking and flooring application
Working Properties
Works easily with hand and machine tools, easy to glue, nails and screws well, stains and polishes to an excellent finish
Durability
Very durable
Density
960-1200 kg/m³
Massaranduba
massaranduba structural hardwood
Botanical Name
Manilkara Bidentata.
Origin
South America.
Brief Description
Colour:Whitish to pale brown sapwood with dark reddish brown heartwood
Grain: Straight to Interlocking
Texture:
Fine & Uniform
Uses
Construction, bridges, decking, alkways, handrails and stairways.
Working Properties
Machines and saws well, despite density, with medium blunting on cutting tools. Sands and polishes well, but pre-drilling required prior to nailing and screwing
Durability
Very durable
Density
1050 kg/m³
Opepe
opepe structural hardwood
Botanical Name
Nauclea Diderrichii.
Origin
West Africa.
Brief Description
Colour:Whitish to pale yellow sapwood with orange or yellow heartwood
Grain: Mostly interlocked
Texture:
Fairly coarse
Uses
General constructions, boards, beams, heavy framework, wharf and jetty decking, marine work interior and exterior coatings and planks
Working Properties
Works moderately well with hand and machine tools, pre-boring necessary for nailing, glues well and a high finish is obtainable once filled
Durability
Very durable
Density
740 kg/m³
Purpleheart
Botanical Name
Peltogyne Pubescens.
Origin
Central America and tropical South America.
Brief Description
Colour:Creamy white sapwood with dull brown to a bright, vibrant purple heartwood
Grain: Straight but often irregular.
Texture:
Moderate to fine
Uses
Heavy outdoor construction work, bridges, park benches, flooring and
decking
Working Properties
Can be difficult to work, turns well, pre-boring necessary for nailing, glues without difficulty, stains and wax polishes easily
Durability
Very durable
Density
860 kg/m³
Yellow Balau
Botanical Name
Shorea spp.
Origin
Western Malaysia.
Brief Description
Colour: Yellow-brown
Grain: Interlocked
Texture:
Moderately fine and even.
Uses
Marine constructions, lock gates, piling, fenders, bridge components, decking, outdoor furniture.
Working Properties
Works reasonably well but with severe blunting of cutting edges it is necessary to reduce cutting angles and feed speeds
Durability
Very durable
Density
930 kg/m³

Further Properties

Species

Strength class

Weight per m³ (12% mc)

Modullus of elasticity (12%mc)

Durability

Cumaru

D60

1070kg

26610 N/mm²

Durable

Ekki

D60

950-110kg

18500 N/mm²

Very Durable

European Oak

D30/40

720kg

10100 N/mm²

Durable

Garapa

D40

790kg

15880 N/mm²

Durable

Greenheart

D70

1030kg

21000 N/mm²

Very Durable

Ipe

D60

1040kg

22760 N/mm²

Very Durable

Massaranduba

D60

1100kg

24410 N/mm²

Very Durable

Opepe

D50

740kg

13400 N/mm²

Very Durable

Purpleheart

D50

860kg

16700 N/mm²

Very Durable

Yellow Balau

D70

880-950kg

19000 N/mm²

Very Durable

Availability: 1″ x 6″ to 10″ x 10″ ex stock (larger sizes available on request)

Also

Sawn Timbers

Tropical Hardwoods

Sawn Timbers

Black Walnut

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