The present invention relates to a table saw jig. The table saw jig is designed to enable accurate straight or angled cuts in a wooden workpiece. The jig features a flat or planar base plate and several pre-drilled holes at specific angles. The jig also includes an adjustable guide rail that is secured to a pair of symmetrically opposed pre-drilled holes and can be used for making accurate and repeatable cuts. A wood piece can be positioned along a rip fence of the guiderail allowing the wood piece to horizontally slide to facilitate accurate and repeatable cuts. The table saw jig reduces the time required to precut stocks as well as the amount of waste material produced during the cabinetry and woodworking process.