Spilt oil on the carpet in the garrage.

It's not fitted (well not well enough to be counted as such, just enough to be enough of a ballache to risk working on the car without lifting it)

So now need 5mx5m of cheep as possible carpet so the landlord can't winge.

Who carpets a garrage anyway?

Have you looked round the local Budgiet carpet warehouses for offcuts? They usually have rowls for a few quid.

Large car boot sale?

There are charities that collect and clean carpets ready for resale, being charities their prices are pitched at the poor so very cheap. They'll even fit them for very few quid. I used the lovely Spruce in Glasgow for carpets for film sets. Maybe there is someone similar in your neck of the woods, google carpets and recycling I guess.

Alternatively a site like Gumtree might have some for sale or maybe even for free.

Given that your landlord has carpeted the garage is he expecting the garage to be used as a garage? If he is then a bit of oil is fair wear and tear. (or is it a lot of oil?)

Before you go to too much trouble to replace it have a chat with him, it could be he put the carpet in there for want of anything better to do with it. He might not give a toss what happens to it.

property developer. know one who gives em away if you'll collect.