Where to buy second door?!? Please help

[SmoothMineral]

I've seen people with two doors, and read posts saying that you can buy a second door for 10 gems and then move your doors around, but I can't find the door in the shop.
Please help me.

[FrozenTurtle]

You can find the door in the 3rd tab (wall decor) of your design menu. It should be on the 3rd page in. Hope that helps! :)

[SmoothMineral]

Found it! Thank you, you kind soul.