Not easily. French door packages have additional hardware allowing one door to lock while the other remains unlocked.

Yes and forget it. We’re building and have 3 sets of French doors 2 of which are impact glass since we are in FL. Very costly, about $13K but it is what it is. Do it right or don’t do it.

What they said...........

Very costly, about $13K but it is what it is.

Is that for each set of doors or all together?

I had it done for a shed. Not for a house!

You’re leaning over to pick up a shiny dime and letting the dollar flutter away in the breeze.

Material savings of any kind on a job that requires 2x the labor to make them work ends up costing you more than just choosing the more expensive materials that are the correct and easy choice for the job in the first place.

Repeat that 1000x times until you get it. The choice that is the fastest and easiest choice will always end up being the cheapest choice. Labor expensesdwarfs materials expenses. Shorter labor times means a less expensive job.

Stay away from salvage and Craigslist seconds materials. The $13 slate tile from the good tile shop will be a ton cheaper in the long run over the $3 non square and improperly gauged slate from a box store that takes 4x as much time to lay.

Double front door make pretty pictures on McMansions. But once installed, they are seldom both used simultaneously. No one has mentioned the special locking hardware required for use by double doors.

You may be much better off with a single 36" or even 42" wide attractive door and matching fixed sidelights.

I would agree. I love a single entry door. Mine is 42" and it is just wonderful!