Abstract: A collapsible stool structure adapted for use in fishing and other outdoor activities comprises a support shaft which is received in a base plate on assembly. Disposed on the other end of the support shaft and pivotally attached thereto is a seat structure including two angle members radially extending from the pivot to engage one end of a triangle member which, by way of the bell crank bracket pivotally engages the support shaft. The two angle members furthermore attach to a tackle box or similar equipment storage device and by virtue of their attachment to the seat and the tackle box provide a separating gap equal to both the triangulating member and the base shaft. In this manner the seat structure may be pivoted into a position where the angle members are disposed on either side of the support shaft or may be rotated from that position to engage a transverse pin in corresponding detents formed in the underside thereof.