An interior wall shelf of a building.
Wall shelves are common to most building types. The wall shelves of a traditional house, baluy, extend around all four walls. They rest on the wall-top border beams, hu'lub, and extend outward to join the roof at the rafters. With walls of a single horizontal wall plank, ballābag, the shelf rests on the top edge of the plank. The wall shelf seals the interior of the house above the house wall.