Abstract: A door reinforcement apparatus for mounting on the interior side of various types of doors, whether side opening or vertical opening, combining ease of use and simplicity of design with added security and strength to the door where installed, comprising an adjustable mounting bracket having a first plate with one or more holes running perpendicularly through said coplanar surfaces of said first plate for insertion of mounting bolts for fastening of said adjustable mounting bracket to the wall surface above the door being reinforced, said adjustable mounting bracket also having a second plate perpendicularly connected to said first plate's, said second plate having one or more holes; and a beam having one or more fastening holes near its upper end for insertion of bolts when aligned with said connecting holes of said second plate of said adjustable mounting bracket, said beam further including an integral bottom mounting plate disposed perpendicularly to the rest of said beam at said bottom end of said beam, s