Riser/Stringer Stairs with Outside Corners
The framing for stringer stairs with outside corners is similar in every way to standard stringer stairs, except at the corner. Space stringer every 16” OC and mount them using drop blocks as described in the stair building section. When calculating corner miters, take the angle of the corner, for example a 45° corner is made up of two 22 ½ ° miters. The risers, or toe kicks, get mitered at the corners where the meet the riser coming from the opposite angle of the corner.