'rip up' can be a phrasal verb: "He ripped up the cinema ticket" [= tore it into pieces], but in this case it's just the verb 'rip' with a preposition. The carpet was fixed to the floor (by nails/glue/staples/whatever) and he pulled it up, away from the floor, violently.
A wooden floor is what it says - a floor made of wood: it is not beaten earth, or tiled, or concrete; it is wooden.
PS Here's a link: UK Floor Sales; Buy Wooden Flooring Online and delivered to your door..
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