Frontline trenches were usually about seven feet deep and about six feet wide. The Allies were forced to dig their trenches in lower ground so they were often waterlogged. They had a zigzag pattern to prevent the enemy from shooting straight down the line. Sandbags were put on both sides of the top of the trench to absorb enemy bullets. Lines of barbed wire protected the frontline trench with No-Man's Land in-between. Men stayed in structures called dug-outs. They were built in varying degrees of luxuries and it must have been very miserable living in them. Living in the trench you could get fever, trench foot, lice, and rats in the trenches. The water was bad and you could get dysentery. You are under constant motor fire and gas attacks. When it rains the trench could get flooded and collapse. Soldiers could also have burn out or go insane from being there. So it’s safe to say it was very miserable.