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Closet door construction6/3
Looking at a project that has several closet doors 1.5 X 18 X 80....stiles and rails are specified at 2" wide, flat panel with mirror mounted on the back of the doors
Architect has them detailed with stave core stiles and rails, 1" MDF center panel with 1/4" mirror glued to the back
Any thoughts on the best construction method using the above specs? Not seeing how these have a chance at staying flat....would you make up the door and glue in the center panel?
There is no reason these would not stay flat as long as good practices are used. Start with properly dried hardwood like soft Maple or Poplar. process all parts on the jointer before planing for straight and square. Stave core stiles need to be flattened on a true jointer before laminating with face veneers/solids of the same species and cut. Glue properly. Mortise and tenon or dowell joints at the stiles rail joints. Make a 1/2" plow into the stiles and rails for the panel, and undersize it a bit. Since it is MDF, it can be glued in place as it will not move like solid wood. Be sure the doors are flat when dry fit - sight them or string them or use a known flat reference. Use a flexible adhesive for the mirror. If you don't have a jointer, sub them out.
Thanks for the quick response David, makes sense....I will give it a shot
I was concerned about gluing the mirror on the back of the door and creating a unbalanced construction...using the flexible adhesive you think that would work out?
I will say that we have had problems with gluing mirrors to 3/4" slab doors- they tended to bow. Where possible, I ask that we use mirror clips. (If you need rationalization, just say if the mirror ever breaks you can replace it. )
Also, we have had them slide down the doors if the glue has not had ample time to cure. It should say on the mastic.
Nevertheless, with doors this thick this should not be a problem.
I also have had problems with gluing mirrors. You may well be ok given the panel dimensions but it would be wise to give a disclaimer of liability.
I have had problems with mirror glued to the one side of plywood but not mdf.