NET

15 He constructed the walls inside the temple with cedar planks; he paneled the inside with wood from the floor of the temple to the rafters of the ceiling. He covered the temple floor with boards made from the wood of evergreens.

Darby

15 And he built the walls of the house within with boards of cedar, from the floor of the house to the walls of the roof; he overlaid [them] on the inside with wood, and overlaid the floor of the house with boards of cypress.

KJV

15 And he built the walls of the house within with boards of cedar, both the floor of the house, and the walls of the cieling: [and] he covered [them] on the inside with wood, and covered the floor of the house with planks of fir.