A miter saw extendable fence attachment for facilitating cutting of long pieces of wood includes a centerpiece that is complementary to a table of a miter saw. The centerpiece is configured for attachment to the table. Each of a pair of extensions comprises a support and a plate. The support is reversibly couplable to a respective opposing end of the centerpiece. The plate extends perpendicularly from a front of the support adjacent to a bottom of the support. The supports are positioned to couple to the centerpiece such that the plates are positioned coplanarly with an upper face of the table. The plates are configured to place a piece of wood for cutting with a blade of the miter saw.