1A small building or simple structure such as a hut, shed, cabin, or animal pen.
庭に小屋を建てて、道具を置く予定だ。
I'm planning to build a shed in the yard to store tools.
台風で小屋が壊れてしまった。
The hut/shed was destroyed by the typhoon.
牛の小屋は朝の掃除が大変だ。
Cleaning the cows' pen in the morning is hard work.
2A small theater or temporary playhouse — e.g., a tent or booth used for performances or shows.
祭りの会場には小屋が並び、色々な出し物がある。
At the festival site there are booths/tents where various shows are held.
その劇団は小屋での上演を中心に活動している。
That theater troupe mainly performs in small playhouses.
サーカスの小屋は町外れの広場に建てられた。
The circus tent was set up in the square on the edge of town.
3One's own house (used humbly); this usage — often read しょうおく — is somewhat colloquial or old-fashioned.
しょうおくは狭いが、どうぞお上がりください。
My humble home is small, but please come in.