מלכים א י:יט פירוש: רש״י

Six steps. Steps by which to go up [to it], and the top of the throne, was circular, where the king sits.

From behind. The throne was wide, and the steps were to the front and to the width, to the back was the seat, higher than the throne, was a round place.⁹A circular dome protruded from above the throne above the king’s head.—Metzudas Dovid

And there were arm-rests on each side. On which to support his arms, like two gold rails from end to end, extending on the right and on the left.