Gate

• Classic safety gate. A lattice gate in metal or wood that has either a clamping function that eliminates the need for drilling, or brackets that are screwed to a wall or door frame.
• Textile gate. A tensioning gate saves space as rolls to one side when opened. Nor is it a tripping hazard, as it has no bottom frame and therefore also works in homes with robot vacuum cleaners.
• Folding gate. Saves space as it opens upwards and not to the side.

If you don't want to drill (and thus in the long run fill and repaint), there are many gates that are clamped to the sides instead. They fit well, but you are still advised not to have them at the top of a staircase in case they come loose.

If you have metal railings, uneven walls, or asymmetrical openings, they also work better.