2 Chronicles 4:1

4:1 He made a bronze altar, 30 feet ¹  long, 30 feet ²  wide, and 15 feet ³  high.

2 Chronicles 6:12

6:12 He stood before the altar of the Lord in front of the entire assembly of Israel and spread out his hands.

2 Chronicles 8:12

8:12 Then Solomon offered burnt sacrifices to the Lord on the altar of the Lord which he had built in front of the temple’s porch. ⁴ 

[4:1]  ¹ tn Heb “twenty cubits.” Assuming a cubit of 18 inches (45 cm), the length would have been 30 feet (9 m).

[4:1]  ² tn Heb “twenty cubits.”

[4:1]  ³ tn Heb “ten cubits.” Assuming a cubit of 18 inches (45 cm), the height would have been 15 feet (4.5 m).

[8:12]  ⁴ tn Heb “the porch.”