a post cap and accessory assembly for pilings , poles and posts for preventing piling degradation while providing a mounting platform is provided . the cap is attached to a piling using spring clips for quick attachment , or it may be secured by nails or screws . winged pedestals are provided on top of the cap and around the periphery of the cap &# 39 ; s skirt to allow for the ease of attachment of many accessories . each accessory is equipped with a grooved base that slides onto the winged pedestals and self - locks . the cap and its pedestals are of homogeneous construction formed simultaneously by plastic injection molding , metal casting or other means . all top and side accessories are attached without violating the integrity of the cap so that it remains completely waterproof . an alternate embodiment provides a dual - purpose rope cleat and mounting fixture in place of the top - mounted winged pedestal . the rope cleat and mounting fixture also accepts accessories in a manner similar to the winged pedestal .