an attachable aligning arm 50 for straightening aligning and holding new deck boards 71 b to nail the boards to the beams in fig1 9 the outer structural tube 20 comprises a rigid elongated hollow structure having a bottom open end 29 and an aperture 25 in a top end 24 a fork also called rigid lifting arms 21 extends down below the bottom open end 29 of the structural tube 20 as shown in fig1 the fork 21 comprises a pair of parallel l shaped spaced rigid board lifting arms permanently attached to a lower portion of the outer structural tube 20 extending below the bottom open end 29 and having two parallel lifting arms extending orthogonally relative to the outer structural tube 20 for lifting deck boards 71 as shown in fig2 4 the rigid board lifting arms 21 are spaced a sufficient distance apart to straddle a deck board supporting beam 70 as shown in fig3 and 4 in fig1 an elongated threaded shaft 31 inside the inner structural tube 30 extends along the length of the outer structural tube 20 the inner structural tube 30 comprises a threaded opening 35 in a top inner shaft end 37 to ride on the threaded portion 31 of the threaded shaft inside the inner structural tube 30 a flat head 32 with a nail receiving slot 36 at the bottom end.