A description as shown in fig1 a 1 b and 1 c a wood sill reinforcement plate includes a flat plate section 10 with an opening 12 extending through the plate 10 and having a diameter slightly larger than an anchor bolt to receive an anchor bolt in addition a plurality of gripper prongs 14 extend downward and are shown to be formed with a sharp point so as to pass into and grip the wood sill when the reinforcing plate of the present invention is installed in the construction of homes in fig2 a 2 b and 2 c illustrate a second embodiment and has a flat plate portion 20 includes an opening 22 as can be seen the opening 22 is actually formed with a tapered portion extending downward to have a lower portion 24 of approximately a size to receive the anchor bolt the tapered portion forms a gripper surface to extend into any open area between the anchor bolt and the opening in the wood sill to fill the opening and to strengthen the corner providing additional reinforcement for the wood the embodiment of fig2 also includes gripper prongs 26 similar to the prongs 14 in fig1 fig3 a 3 b and 3 c show yet another embodiment of the present invention including a plate portion 30 with an opening 32 to receive the anchor bolt the plate 30 has slightly canted corners so that gripper prongs 34 have a slightly wider profile then the gripper prongs 14 and 26 of fig1 and 2 respectively the gripper prongs 34 would thereby enter the wood at a slight angle across the grain increasing the drag through the.