Thai doors? They wrap.... did you paint them on both sides? A good door is made of oven dry wood. If not, it wrap. You can buy cheap board doors...... instead of spending so much money to full hard wood doors. Yah, you can buy real doors, indeed ping ping..... up to you.
Aluminum slide doors perhaps?
The moisture in the air in Thailand is....70 till 90% or what? Everything gets f@cked up here, nothing stays nice, everything cracks.
Lower your expatiations, it's Thailand. I did the same, think Thai. Save your money.