this invention is a modular pole assembly comprised of corner pieces and panel members . panel members are slidably engaged to the corner pieces and are retained in a direction normal to the engagement direction by a track in each slot that nests within a groove in each panel member . comer pieces may include multiple slots along each side , allowing for multiple layers of panel members along each side , thereby increasing strength and allowing an insulative and structural fill material to be added between panel member layers . the height of the modular pole may be increased by inserting splicing posts between consecutive , adjacent corner members and inserting splicing pieces between co - planar adjacent panel members . the modular nature of the pole assembly provides for simple packaging and shipment of the various components and easy assembly at or near the installation location .