level4dHere we explore 3D, 4D, 5D and 6D Building Information Modelling (BIM) and show how adding extra information can make for more timely decisions and ultimately better buildings.EODOJU Laser Level, 4 x 360° Laser Level with Tripod, Self Leveling Laser Level 4D Green Lazer Level 16 s Laser Level 360 Self Leveling for Construction, Picture Hanging, Floor