'Ledge' in the Bible

From the base of the ground to the lower edge is 3? feet, and the width 1? feet; and from the smaller ledge to the larger edge, 7 feet, and the width 1? feet;

The ledge is 24? feet long and 24? feet wide on four sides; the border around it is 10? inches, and its surrounding base 1? feet. Its steps face east."

You will take some of its blood, and place it on the four horns of the altar, on the four corners of the ledge, and on the border all around; you will cleanse it and make atonement for it.

The priest will take some of the blood of the sin offering and place it on the doorpost of the temple, on the four corners of the ledge of the altar, and on the doorpost of the gate of the inner court.