。
Wooden houses catch fire easily.
Literal
Tree [possessive-の] house [topic-は] fire [subject-が] attach-easy.
A plain-vocabulary phrasing of the same idea expressed by the more elevated 木造家屋は燃えやすい — substituting native 木の家 for the Sino-Japanese compound. The grammar is identical: は + が double-subject with 火がつく + ~やすい. A useful side-by-side reminder that Japanese routinely lets speakers pick a register by swapping vocabulary while keeping the syntax constant.