This started from the "typical" Shaker chimney cupboard, but became wider to match the household's need and the space. Ponderosa pine from a local sawmill, milk paint.
During construction, I added supports for, and made all the shelves. The top pair of supports have a notch for a dowel across the width, and I sized it so hangers don't hit the back or front walls. For the first few years, when we stored my suits and my wife's long evening gowns in it, the shelves were stored on the floor.
No thanks, ohwoodeye. I'll settle for the lesser rating from you.
The whole "match the inside to the outside" is not a hard and fast rule. While there are some circumstances where it can help by balancing moisture exchange between the two sides of a board, it doesn't work for enclosed spaces like chests, armoires, etc. The battens have held the two-board door flat for 6 years now.
Now that I'm thinking about it, I haven't had many of the wood movement problems which I hear about for lower altitude, higher humidity places. Fewer mosquitos, too.