after de brahm's departure, demeré abandoned the original palisade design in favor of a single, more permanent palisade. the walls of the palisade consisted of upright logs, of which extended from the ground at a 15-degree angle. the interior of the fort covered approximately , and included a powder magazine, a blacksmith shop, barracks and officers' quarters, and supply buildings. the garrison built drains, troughs for salting beef, a meathouse, and a charcoal pit for the blacksmith. the walls and bastions were completed by march 26, 1757. demeré reported the fort completed on may 30, 1757. governor lyttelton named the fort after john campbell, 4th earl of loudoun, who had recently been appointed commander-in-chief of british forces in north america.