How to stop large wardrobe door warping

I'm building a large wardrobe and the Mrs is keen for a single panel door. The doors are tall but narrow roughly 200x40cm and will be painted. Planning 4 hinges per door which will hopefully keep the hinge side straight. How do i stop the door warping as would prefer to only build this once. I'm planning hardwood rails and stiles 21mm thick and 69mm wide. Initial plan was 12mm hardwood ply for the panel. Would MDF be better? Should I add extra rails behind the panel (or would this encourage warping as only on one side?) If I do should I glue the panel to these rails? Do I go wild and do a small torsion box behind the panel and cover the back with 3mm MDF / ply? If I go down this route is there an easy way to buy and fit cardboard honeycomb like hollow core doors? Am I just over thinking? So many question submitted by /u/philip_the_cat [link] [comments]

May 5, 2025 - 15:10

I'm building a large wardrobe and the Mrs is keen for a single panel door. The doors are tall but narrow roughly 200x40cm and will be painted. Planning 4 hinges per door which will hopefully keep the hinge side straight.

How do i stop the door warping as would prefer to only build this once.

I'm planning hardwood rails and stiles 21mm thick and 69mm wide. Initial plan was 12mm hardwood ply for the panel.

Would MDF be better?

Should I add extra rails behind the panel (or would this encourage warping as only on one side?) If I do should I glue the panel to these rails?

Do I go wild and do a small torsion box behind the panel and cover the back with 3mm MDF / ply? If I go down this route is there an easy way to buy and fit cardboard honeycomb like hollow core doors?

Am I just over thinking?

So many question

submitted by /u/philip_the_cat
[link] [comments]