Stair protection railing - stair safety for children

Otherwise, maybe clamp a telescopic rod underneath or something, if you have concerns?

I had thought about that... Then I don't have to have something special made, but can just take a standard stair gate off the shelf :)

Take a look at the stair safety gate 2733/2735 from the company Geuther. You can attach it on one side to the wall, and on the other side there is also the possibility to fix it using wooden "clamps" to, for example, a flat steel (possibly you need to thicken it a bit, I'm not sure about that). It would then be clamped in place and could even fit so that it sits in front of the step at the bottom.

Unfortunately, the picture is not clear enough! We have installed this three times and are very satisfied; the advantage is that there is no threshold.

Look, in a contemporary other thread: this picture is posted:

I know, we are always unorthodox: We took a kind of fishing net and attached it at 10 points so that it was taut. Then on one side with a metal rod, so that we only need to open/close at one point with a carabiner hook.

It looked clearly nicer than the normal stair gates, was cheaper, and was DIY perfectly fitting to our old building staircase. It survived four children and the children survived too :)

I was just about to vote for the Geuther 2733+ as well, but was quicker and already posted the picture. I would only use something with clamping rods if it goes upwards, so at the bottom of the staircase landing. Never at the top at the beginning of a staircase. The clamping rods might not hold. I think that's also mentioned in the instructions. Some do it anyway, but you should be aware of that. A small child likes to run, jump, slide against it everywhere with momentum or climb on it while you're just drying your hair. I don’t know how to fix it next to the front door, since you have a glass insert there.

We solved it completely unorthodox and just gave away the stair gate. :D

Babies / children go through different phases, and for the first few months you don’t need to stress because they’re not mobile yet. When crawling starts, you’ll quickly reach the point where you either a) have to supervise them in your immediate vicinity, or b) have to keep them within a "Safe Space," like a bigger playpen or something similar.
I didn’t like the idea of the playpen at all until we had a child. Then we got one fairly quickly because the child didn’t find it so "prison-like" as we adults did – ours always loved it, happily played inside, and often even fell asleep there.
We never missed the classic stair gate because, in the hallway, there were so many things that weren’t childproof anyway that we either stayed close to the child or the child had no access to the hallway.

When he got older, we eventually installed a pressure-mounted gate on his room door. We secured the room so he could safely stay and play there alone, and the gate in the door made sure he didn’t get to the stairs or other rooms that weren’t child-friendly. But that is a pretty special case since our son played autonomously quite early and was generally never very clingy. That’s not necessarily typical, from what I hear from friends.

But that’s just food for thought, it doesn’t have to fit with your plans.