The effect of density variation on the mechanical properties of Borassus aethiopum was assessed. Five trees were selected from the transitional zone in Ghana.“Wood” samples were collected from the three distinct zone of the tree: the dermal zone, sub-dermal zone, and the central at 15%, 30%, 45%, 60%, 75% and 90% of the tree merchantable height. One-half of the boards were used in the green state and the other half air dried for the dry tests. Mechanical strength test specimens and Density were prepared and tested in accordance with the British Standard BS 373:1957.The mean basic density and [density at 12%MC]for each of the zones in Kg/m3were 636.0 [793.3], 476.4 [579.1], and 251.2 [293.9] respectively. The mean strength values in N/mm2 in the ‘green’ [and dry] conditions for the dermal zone, sub-dermal zone, and central zone were carried on Modulus of Rupture, Modulus of Elasticity, Compression parallel to the grain, Shear parallel to the grain: 8.53 [11.64], 5.36 [7.74 ], and 1.15[1.80]; Hardness in kNW here as the “wood” density and mechanical properties increased from the central zone to the dermal zone, they however decreased from base to top at any particular height. There was a good correlation between the Density and the various mechanical strength values at (p < 0.001).Hence “wood” density can be used in predicting the mechanical properties of Borassus aethiopum wood.
