Abstract: A rail bracket apparatus for connecting a first rail and a second rail which includes a back piece, a bottom piece, and a bottom support system. The back piece includes screw attachment openings and the edges of the bracket are adapted to facilitate installation of a supported rail. An offset spacer is attached to the back piece to allow for air circulation around said supported piece. The bottom piece can be curved to support rounded rails and may include a water passage opening to allow for drainage. The bottom support system includes an angle bracket and the bracket joints are strengthened with fillets. Side pieces are provided for supporting and holding the installed rail. The unit may be designed with an engineered failure mode to allow for bracket failure to occur before a rail failure would occur. A rail retaining system may be used to retain the rail in position. A rail slot extension may be used to support the bracket in association with a rail cutout.