The doors are just block board or chipboard cored, and a thin veneer on the outside and strip wood down the edges, the reason they tell you not to use oils or waxes is because the solvents will react with the glue bond and lift the veneer and theyll probably refuse to replace the doors, so an expensive learning point.
Measure the opening at top middle and bottom of frame and ensure whoever fits them doesnt have to tak e to much off the sides of door to fit, theyre only covered by a thin strip down each side , and none at base.
If they get delivered they will probably be delivered in cardboard packaging, remove it all before you hand them to the joiner,check for dents, splits or water damage as they do come complete with damage, also lay flat with cardboard between to stop scratching.
Finally 3 hinges 3 inch long, and pre drill all holes as screws may snap.
