As a matter of fact, I do have a few more photos, NUTTSGT! The workshop will have three interior doors, not counting a closet that may be too small to build one like the others -- mechanical room door (complete), bathroom (complete), and top of stairs (not started).
I used 1X10" shiplap "full cut". These boards are what are used as the inside walls for the barn and have a rough side and a planed side. For the frame and Z, I ripped the 1X10 into a full 4" wide board (taking off the "lap" in the process). I then put an appropriate number of 1X10's in a square "jig" with the planed side down. I used 1 3/4" deck screws to attach the rectangular frame from the ripped 4" boards after measuring the diagonals to ensure the frame is close to square. The frame is centered horizontally (as the door will stand) on the 1X10's so there is likely to be a few inches on each side to remove later. I also don't put the top (or bottom, depending on your orientation) 4" board at the end of the 1X10's, but place it a couple of inches inside. When screwing the frame onto the 1X10's, I use two pipe clamps to pull the 1X10's together. Here are the two doors with the frames on them:


After the frame and Z (for the bathroom door, it's really an "S" since it will be hinged on the other side) are attached, I used a Skil saw to cut the 1X10's by going around the exterior edges of the frame.
For the bathroom door, one of the boards was a bit warped -- should have noticed before I made it! So, I Gorilla-glued it while pressing it together:

The roofers were still waiting for it to stop raining (it didn't) and helped me clamp it up!
Don't know if this is what you wanted -- let me know if it isn't. The doors are VERY heavy; I plan to use heavy-duty hinges with false spear-shaped straps to match the door that came with the barn "kit".
I used 1X10" shiplap "full cut". These boards are what are used as the inside walls for the barn and have a rough side and a planed side. For the frame and Z, I ripped the 1X10 into a full 4" wide board (taking off the "lap" in the process). I then put an appropriate number of 1X10's in a square "jig" with the planed side down. I used 1 3/4" deck screws to attach the rectangular frame from the ripped 4" boards after measuring the diagonals to ensure the frame is close to square. The frame is centered horizontally (as the door will stand) on the 1X10's so there is likely to be a few inches on each side to remove later. I also don't put the top (or bottom, depending on your orientation) 4" board at the end of the 1X10's, but place it a couple of inches inside. When screwing the frame onto the 1X10's, I use two pipe clamps to pull the 1X10's together. Here are the two doors with the frames on them:


After the frame and Z (for the bathroom door, it's really an "S" since it will be hinged on the other side) are attached, I used a Skil saw to cut the 1X10's by going around the exterior edges of the frame.
For the bathroom door, one of the boards was a bit warped -- should have noticed before I made it! So, I Gorilla-glued it while pressing it together:

The roofers were still waiting for it to stop raining (it didn't) and helped me clamp it up!
Don't know if this is what you wanted -- let me know if it isn't. The doors are VERY heavy; I plan to use heavy-duty hinges with false spear-shaped straps to match the door that came with the barn "kit".














) and post it here. 




































