A remix of "Foot to keep baby gate upright" for a 25mm wide dog gate to provide a bit more stability for multi panel gates. The top of the notch has a lip to help hold on to the gate rail. Bottom is serrated for grip, which might help on carpet. Note that gates will not fold flat with these feet attached.

This was traced from the original STL and without regard to being perfect. FreeCAD source included for further modification.