Wood specie: Bilinga
Botanical name: Nauclea diderrichii
Growth area: Africa
Bilinga is listed in the Dutch best practices
guideline NPR5493: 1999, Quality guidelines for deciduous wood in hydraulic
Colour of heartwood:
Fresh bilinga heartwood is yellow
to orange-yellow, discolouring into orange-red to golden brown.
Colour of sapwood:
Pale yellow to white
Fresh 900-1150 kg/m³
Cross-grain, also spiral or undulating grain.
During the drying process, both natural and
kiln-drying, bilinga tends towards splitting and fissure; however, hardly any
warping occurs. In order to prevent short-term occurrence of head-side fissure,
protection of the head ends is recommended. Hair fissure often occurs during
the drying process.
Virtually no warping.
Mould and insects:
Mould 1. Termites D. Marine borers
In spite of its hardness, bilinga can be
machined rather well. In order to ensure the surface is smooth, a small shaving
angle is required for machine shaving (10 degrees) due to the strong
cross-grain. Processing dried bilinga has a pronounced blunting effect on saws and
Decking 21 x 145 mm and 25 x 145 mm
Bilinga is suitable for many
construction objects, both indoor and outdoor applications, and as construction
wood in hydraulic engineering such as lock doors, slackening structures, weirs,
platforms, boardwalks, bridges, bridge decks, purlins etc. Other applications
include park benches, fences, gates, pergolas, workshop floors, train floors,
cross-bars of railroad tracks, parquet floors, furniture, sculptures and wood turnings,