The product you refer to is the latest Clear Step 2 with Autoclose feature. It is self-closing with a magnetic lock and can be extended to fit openings from 96 to 101 cm using the 21 cm extension. This matches your need for approximately 100 cm width. The gate is barrier-free, opens both ways, and can be adjusted for one-way opening with a safety lock. Installation is pressure-mounted without drilling.

I would recommend the Hauck N-Stop + 9 89cm (it will be a doorway) to protect the frame, you can also fit felt. Then the whole thing fits.

The use of two 9 cm extensions on each side is technically possible, but it is important to consider the overall width and stability of the safety gate. The maximum width that can be achieved with the standard extensions is 122 cm, as stated in the technical details. A width of 137 cm would exceed the recommended maximum width. It is advisable to check the stability and safety of the safety gate when making such an adjustment.

The 'Clear Step Set 2 + 21 cm White' gate is designed to fit passages with a minimum width of 96 cm. Therefore, a wall with a width of 94 cm may be too narrow for this gate, as it does not reach the required minimum width.

You can unscrew the clamping screws by a maximum of 5.5 cm to be on the safe side. So that would fit :)