Design note: This is a good example of the difference between a C1S stringer configured stair and an H2S stringer configured stair also showing a supported and unsupported inside stringer. On the image below, you will notice that the balusters sit on top of the stringer and that there is no support wall under the upper set of stairs in the picture which is the exact opposite of the picture above where the treads overhanging the inside stringer and it has been "cut" away to expose the tread edge and to allow the balusters to sit down on the tread.
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