Hi - I need to replace an old sliding barn door for a part of my barn I am converting into a new 20x20 workshop. It's a 7 foot wide by 6.5 high opening and While I don't need it super weather tight I will at some point like to heat the space. For the garage part of the barn I had an Amish guy build beautiful carriage doors out of solid stock. I'd like to do something similar but as a single door that can reuse the track I've got now. I'll be painting it so I don't need special wood so thinking Douglas fir or if I can get rough pine boards using those. Here is an example of the design I'm after - but as a single sliding door.
http://www.realcarriagedoors.com/ima...rage-doors.jpg
I've searched high and wide on the internet looking for plans or anything to point me in the right direction. Maybe I'm overthinking it but seems like i build the rails and stiles using solid lumber and mortise and tendon joints. Then I put in the T&G board within a dado in those and let them float.
I'm sure there lots of details or learnings that would be good to know. Any advise including what kind of wood to use assuming they will be painted.
Thanks