How to attach corner post to concrete slab? (pictures!)

[Alko]

Hello, we are finally going to install the staircase to the entrance with a railing around the landing, see picture.

The post for the railing that ends up in the outer corner on top of the landing should be placed on the concrete, and I'm wondering how best to attach it. It cannot be screwed into the stringer as the new permanent staircase will not have the same width as the landing, but will be 0.5 meters "narrower."

I see two options, but other suggestions are welcome

1) One option is to notch the post so it can go down 20 cm on the plastered wall, and then screw it in from the side. Naturally, with sill paper between the post and the concrete floor/lecawall.

2) Another variant is to screw an angle iron that can be reasonably hidden under the post by screwing it into the concrete floor, and then the post stands on the side screwed into the concrete (and then, of course, you screw the standing side of the angle iron into the post).

The disadvantage of option 1 is that it becomes quite exposed to moisture, despite the paper (the landing also slopes outwards, so water definitely flows there).

The disadvantage of option 2 is that it is unlikely to be as stable as notching the post and fastening it with sturdy screws from the side.

All tips are welcome!!!



/A

 

[Alko]

Another option is, of course, to drill a hole in the concrete floor and use epoxy glue (like Biltemas ankarmassa) to secure a post holder that allows the post to stand a few centimeters above the floor, keeping it more free from moisture.



It should be more stable than angle brackets and, of course, more moisture-resistant than notching the post and screwing it to the concrete corner.

The only disadvantage might be drilling a deep hole in the concrete; if water gets in, it could run down to the lecawall and possibly cause frost damage... But it should be fine with glue and a small fillet around the galvanized pin in the concrete.

What does the panel think?

 

[Alko]

No one with an opinion? Was set on drilling 20 mm holes and fastening with anchor compound, but I'm a bit concerned about edge distances/crack risk...

 

[Lolight]

A few small holes with plugs will suffice. Then an angle bracket. You don't need a bracket with a pin. A regular angle is enough.

 

[slacker]

This cleat also exists:

 

[Alko]

But the posts are thicker, no standard measurements. Anyway, used two angle irons instead, became really stable! And a better solution in terms of moment forces compared to a single pin on a post shoe. Then it wasn’t fun that almost all the holes hit the reinforcement, but we solved it with shorter screws, green plugs, set glue, and sometimes longer concrete screws when the depth allowed.