From the courtyard one enters the Billeting Room. Here the external walls are fourteen feet in thickness. The barrel vaulted ceiling is two and a half feet thick at the centre. This amazing construction, much of which was built by Farquhar MacRae, was made from countless pieces of stone varying in size.
In a recess at the end of the room can be seen a Wool Winding Wheel; other interesting exhibits are a fine Chippendale gaming table, a Sheraton (ladies') writing bureau and a picture of the recent Constable of Eilean Donan, Mr. John Macrae and his family.
In the alcove to the right, an exhilarating painting depicts MacRaes, dressed in belted plaids, dancing on the lead roof of Eilean Donan prior to leaving to fight at the Battle of Sherrifmuir during the Jacobite Rising. The MacRaes suffered heavy losses in this battle, and it is recorded that there were fifty-eight widows in Kintail.