Shop-Built Housed-Stringer Stairs
Building in the shop makes assembly easier on the carpenter
Synopsis: Carpenter Andy Engel gives in-depth instructions for building housed-stringer stairs, beginning with laying out the stringers, then building the template for routing mortises in the stringers, positioning the template and routing the stringers, setting the treads, assembling and trimming the risers, and finally adding cove molding. The article includes details for special treatment of the top tread and riser at the upper-floor landing, in-depth drawings that showcase stringer layout, and a sidebar on determining riser height, tread depth, nosings, and stair width according to code requirements.
Forgive the pun, but housed-stringer stairs are a step up from standard notched-stringer stairs. Not only are they stronger and less likely to squeak, they’re essentially finished as soon as they’re assembled.
Housed-stringer stairs rely on mortises cut in the stringers to support the treads and risers. The backsides of these mortises taper, and wedges that match the taper are glued…