Karen,
These people will make you a custom gate and even stain it to match your floors if you like. http://www.indoordoggates.com/ I'm not certain about pressure mount, but you could send them an email. I got a pressure mount door at Lowe's, but it wasn't a walk-thru. Good luck. Rosalind

I have just returned to work and a computer. Congratulations on the new baby. I have a gate that I have used for years that I actually found at Target, in the baby section. It can be either pressure mount or has/had screw in mounts so that it can be mounted to a wall and become a swinging gate. If you are still looking, let me know and I will check for the name/maker. It is all plastic, has held up well for all three of my girls and is tall enough that they need to THINK about jumping over.