Abstract: A boat dock of improved stability and ease of assembly and disassembly, which comprises a dock frame, a pair of dock legs for detachable securement to the opposing sides of the dock frame, and for each dock leg, a releasable leg holding bracket which has means for detachable securement of the bracket to the dock frame in order to prevent significant sidesway of the dock frame. The bracket is slidably received upon the dock legs and capable of upward sliding movement but has stop means to prevent downward sliding movement. The dock, because of its means of construction, prevents lateral swaying movement. Upward pulling motion caused by high waves may move the dock upward on the leg posts and as it comes down, this motion is used to further drive the leg posts into the lake bottom for increased stability.