Rashi on Exodus 27:4/רש"י על שמות כ״ז:ד׳

1מכבר A GRATE — מכבר is an expression connected with כברה, a sieve which is called in old French crible. A kind of covering was made for the altar, constructed with many holes just like a net. The word of this verse are transposed, and its explanation is as follows: And thou shalt make for it a grate of copper, of network.