 All five floors are connected by a central scale-and-platt staircase, added in the early 17th century to replace a turnpike stair in the south-west.The rooms of the upper floors have impressive panelling and decorated ceilings.The main hall, in the south part of the block, has been divided, but retains a large fireplace with the carved initials WS and JE, for William Sinclair and his wife Jean Edmonstone, and the date 1597.