Hi. That is a custom door, fabricated locally. If you are in Seattle, I can track down the shop or you could ask the contractor, Prestige Custom Residential. If don't know of a company that sells such doors nationwide. The hardware itself is made by Rixon. Hope that helps!

I have used a company called Pivot Door Company out of Colorado Springs on a house Tiburon, CA. Their website is actually pretty good https://pivotdoorcompany.com