* A ''square centre-pole tent'' was often used for family camping in the first half of the 20th century. Despite the use of 9 poles and 12 guy ropes, such a tent could be pitched by an (experienced) family of four in some 10 to 15 minutes. These tents had a square floor of size ranging from 8 by 8 ft up to 15 by 15 ft. There were poles about 5 ft high at each corner and in the middle of each side, and a 10 ft or 12 ft pole in the centre - the walls were vertical and the roof was pyramid-shaped, so there was plenty of headroom over most of the tent.
