Taking bets, “how long before I hit my head"?”
It was a marathon session with some “creative CYA” but most of the spiral staircase is it.
Still to be done is the wood treads for the risers along with the balusters and handrail. If it were not such a huge safety and code violation, I’d love to leave the balusters and handrail off as the free floating treads look cool.
A curious coincidence is that each riser weights 42 pounds which is right in the sweet spot for a curling stone!
I was asked how I did the install without help. The short answer is “very carefully”. The long answer is that I built a pair of “holding” jigs – one at the top of the center pole and one in the middle. I first mixed up a small batch of epoxy and buttered the concrete floor to install the base plate. (Later, I drilled the concrete for a pare of holding pins I made and used JB Weld to make those permanent.) I then brought the 90lb center pole in and placed to over the center sleeve of the base plate and secured it with the two holding jigs. With a 12’ ladder next to the pole, I picked up a riser; climbed the ladder; remove the top holder; slid the riser over the top of the pole; reattached the holder; slid the riser down to the middle holder; detached it; slide the riser down the remainder; and replaced the middle holder. Rinse and repeat 12 more times. The last piece was the top platform which is installed much like a riser only it also gets attached to the rim of the hole in the second floor using lag bolts.
So, to the point of this post – any bets on the date and time I first hit my head on one of the risers ?


