The phrase "a certain amount of room" is correct and usable in written English.
It can be used when referring to an unspecified quantity of space available for something.
Example: "We need to ensure that there is a certain amount of room for the new furniture in the living room."
Alternatives: "some space" or "a bit of room".
"We have a certain amount of room to try new things," Mr. Banner said.
One could say that our solution as factored in a certain amount of room for alteration without compromising our core goals.
Inside Northern Lights, we've managed to kid ourselves that we exist, that we're curvaceous or lumpy or angular, bristling with hair and snot, taking up a certain amount of room, and that space and time have generously accorded a margin in which we're invited to operate these sizable greedy bodies of ours, a margin in which to dwell, to hang out and live our pale stinky stories.
The thing is, those consolidated facilities only have a certain amount of room, and rental car agencies typically sign long-term leases for the spaces, on the order of five to 10 years.
"People like myself need a certain amount of room for transfers".
It does include a certain amount of room for judgements to be made".
But there is a certain amount of wriggle room in Jewish law.
Sir Bradley Wiggins followed his last-ditch victory in the Ghent six-day race with his fellow world Madison champion, Mark Cavendish, by retaining a certain amount of wriggle room over his future plans by telling the crowd "this might not be my last race" as the pair were smothered in a shower of confetti.
Airports need a certain amount of wiggle room to keep everything running smoothly - which is precisely where Heathrow comes unstuck.
There is a certain amount of wiggle room in the strict father worldview and there are important variations.
I was there for Corbyn's economic policy announcement, at the Royal College of Nursing, and there was a certain amount of trepidation in the room.
