The 1/2 dry storage box with hinged lid may be permanently mounted in a number of locations to suit your needs. The approximate dimensions are: 16" across the bottom, 12 1/2" tall, 12" wide, & 22" across the top. Optional livewell conversion and/or a cushion are also available for this box. Another seating option for this box is to add seat extrusion to the lid enabling the addition of a seat with swivel.