Exodus 27:5

And thou shalt put it under the compass of the altar beneath, that the net may be even to the midst of the altar.

You shall put it under the ledge around the altar beneath, that the net may reach halfway up the altar.

And thou shalt put it under the ledge round the altar beneath, that the net may reach halfway up the altar.

and hast put it under the compass of the altar beneath, and the net hath been unto the middle of the altar.

Set the grate beneath the ledge of the altar, so that the mesh comes halfway up the altar.