Hello - these mirrors are glued in place using a product called mirror mastic. You can also use double sided tape and liquid nail to affix mirrors. The double sided tape will hold them in place while the glue sets... Please feel free to write should you have any further questions.

Are these solid bifold doors?

Yes they are solid core Masonite doors in which we applied a 3" wide by 1/2 thick picture frame to create the look of a shaker panel. Please let me know if you have any further questions..

I love how these look. What do you mean by picture frame? Is there something set around the mirrors? Roughly how much would it cost to add mirrors like this to existing closet bi-fold doors? I love mirror bifolds and someone suggested to me having mirrors placed on the existing doors rather than replacing the bifold doors themselves.

How did you mount the doors?? These are just what I am looking for but don’t want to put holes in the floor.