A low-rise bleacher is a bleacher with the first row of the bleacher being less than 12” from the ground. If this is the case, more than likely, adults will have a difficult time sitting in the first row as it will be too low to the ground for them. It will get used more as a step then it will for a seat. As a result, if you purchase a low-rise bleacher you may not want to count the first row into your total number of spectator seats.