The initial stage was to get the correct measurements of the variable. Tape measure was used to measure the diameter at the breast height after it was checked against the glass ruler to make sure that it was not stretched and taking accurate measurements. Using the clinometer the ange of observation between horizontal plane and top of tree was measured. The angle and a distance between tree and observer was used to calculate the tree height from the observation plane using mathematical trigonometric principle. Adding a height of the observation plane the complete actual tree height was calculated and used as reference to estimate other tree heights. These measurement will determine the volume of the trees that will lead to determination of biomass and estimation of the carbon stock.