Understanding safety and comfort of stairs is important in building construction because humans use stairways in their everyday activities.  When building, there are different dimensions made for the human body to comfortably  preform in. Not only are stairs for transportation but they are also seen as ports of safety, access, and exit. To list a few of the many different stairs, we have straight – run, quarter – turn, winding, circular, and spiral stairs. Any kind of stairs made must be conventional so that other architects can clearly read your section cuts and plan. in addition your stair design must be consistent. For example the with of your stairs should be the same width of your platform so that everyone can fit comfortably at a constant rate. Without this consistency people will get squished and the passage ways can get backed up making it hard for individuals to exit.