What are the legal steps for two foreigners to get married in Bangkok?

How refreshing, this post was not done anonymously. Good on you Valerie and may your marriage be filled with joy, happiness and love for the rest of your lives.

All the steps are listed here and, using an Amphur outside Bangkok, it can be completed in under a week

Local 7-11 can do that

First you both need notarized right to marry documents from your respective embassies, stating that you are either single never married, divorced, or widowed, with the last two requiring supporting official documents. When you have these then with copies of your passport entry stamps, and data pages, you go to the BangRak amphur/ local administration office with two witnesses, and they will marry you. Go there first to get the exact list of what is needed, and you might need to make an appointment, as that office is where most foreigners get married at in Bangkok. Actual marriages do not involve any monks, just going to the local amphur and the official there does it.