Each tread is secured in place from below with a polymer wedge glued and hammered into place.
The last post for the second floor railing is in and ready for the railing.
Underneath is tongue and groove too. The carpenters are also installing an audio/visual cabinet (and home for our Musen 'Ham Radio' base station). The space under the stairs will also serve as our mini home office and house our PC (so we can post more Blogs, of course!). We are excited to see what design the carpenters create!