וַיַּ֤עַשׂ לַמִּזְבֵּ֙חַ֙ מִכְבָּ֔ר מַעֲשֵׂ֖ה רֶ֣שֶׁת נְחֹ֑שֶׁת תַּ֧חַת כַּרְכֻּבּ֛וֹ מִלְּמַ֖טָּה עַד־חֶצְיֽוֹ׃
Targum Jonathan on Exodus
And he made the grate of the altar, of brasen network under the border beneath, reaching to the middle of it, to receive the cinders and bones that fell from the altar.