Grate
GRATING, GRATE (Heb. resheth). A copper network, moved by a copper ring at each corner and placed under the top of the great altar (Exod.27.4; Exod.35.16; Exod.38.4-Exod.38.5). It reached halfway up the altar and allowed a draft to enhance the burning of the sacrifices. It also allowed the ashes to fall to the ground below for easy removal.
GRATE, GRATING (מִכְבָּר, H4803, anything twisted or woven, lattice-work). An element of the altar of sacrifice.
International Standard Bible Encyclopedia (1915)
W. Shaw Caldecott