Real wood, solid.  Exactly what I needed no MDF!  My only reasons for 4 stars was my installer said 1.  there were 2 sets of instructions.  One that said dont use this one use the other.  2. Some of the tongue and groove didn't fit together, he haid to cut to make them work (the panels come individually) 24×84.  It came with two, you could configure with the panells crossed or straight as we did.

After hanging some tweaking was needed for the gap between the two doors.  I haven't seen the finished product but will upload pics when I do