A border floor plank of a traditional house, baluy.
There are two; they run parallel to the front and back of the house and rest on the two outside floor beams, mundīlig, and center floor beam, gawa''an. The floor beams are notched out with tenons remaining, which are inserted into mortices at each end and in the center of the border floor plank. Thus the top surface of the border floor planks are level with the top surface of the outside and center floor beams.