PURPOSE: An extrusion molded panel including hollow pipes is provided to improve durability by preventing the shape deformation due to climate change. CONSTITUTION: An extrusion molded panel(10) including hollow pipes(13) comprises a main body(11) and a hollow pipe. The main body is made of synthetic resin or synthetic lumber. The hollow pipes are inserted inside the main body at a regular interval. The main body and hollow pipe are integrally extruded and molded.
