Considered by some to be the alternative basic movement, the Left Box Turn is an integral part of the Foxtrot repertoire. Most notable is the 8-count "box rhythm" (SQQ SQQ), which is a departure from the SSQQ rhythm typically associated with Bronze level Foxtrot.

The Left Box Turn in Foxtrot is a figure borrowed from the Waltz. Other than the expected rhythmical difference (SQQ vs 1,2,3), the main difference between Foxtrot's Box and Waltz's Box is the rise & fall action, which in Foxtrot is more subtle. As in the Forward Basic, the chasse on steps 2-3 and 5-6 of the Foxtrot Box is taken with an earlier lowering than its Waltz counterpart; The knees begin to flex and heels begin lowering as the feet begin closing.

The Left Box Turn, sometimes known simply as the "Box Step", gets its name from the steps that comprise the pattern when it is taken without turn. These steps outline the four corners of a box, as can be seen in the diagram:

Man's Part	Lady's Part

The Left Box Turn can be taken without turn, as in the diagram above, or with up to 3/8 turn to left over each measure of music / 3-step group. When taken without turn, or when turning 1/8 or 1/4 per measure, the Box is considered a spot movement, and can be taken anywhere in the room, facing any alignment. When turning 3/8, it should be taken with very specific alignments to ensure proper travel in the general direction of the line of dance. They are as follows: