The phrase "a firm limit" is correct and usable in written English.
You can use it when discussing boundaries or restrictions that are clearly defined and not subject to change.
Example: "The company has set a firm limit on the budget for this project to ensure financial discipline."
Alternatives: "a strict boundary" or "a definite cap".
His interest in chaos always had a firm limit, for himself and for others.
still places a firm limit on how far they can go.
It is hard to say precisely how far yields can fall: until recently, many people may have felt that zero was a firm limit.
Many linguists believe that once two languages have drifted so far apart that they share only 5percentt or so of their vocabulary, chance resemblances will overwhelm the true ones, setting a firm limit on how far back their ancestry can be traced.
That's the case in coastal cities, like Seattle and San Francisco, where jobs and access to entertainment attract families, but the waters that bookend them put a firm limit on urban sprawl.
That figure is far lower than the 110,000-refugee goal President Barack Obama proposed, and puts a firm limit on a program that previously has been up to the president's discretion.
Robin Dunbar of Oxford University looked into the social networks of primates and found that there is a firm upper limit to the number of other individuals one can know as individuals -- and for humans, that limit is 150.
With the notion of a firm, enforceable limit on team payrolls off the table, the bargaining positions and rhetoric on both sides have only hardened.
The new plans allow states to set a firm, upfront limit on the amount they will contribute and leave it up to the employee and the financial markets to make the money grow.
The data yield a firm upper limit of 7 x 10-36 gram per cubic centimeter for the energy density of a cosmic background of gravitational radiation at frequencies of about 0.23 cycle per year.
"Willpower"'s authors also offer this related tip: Set a firm time limit for tedious tasks -- we're more likely to start cleaning out those files if we've decided to spend an hour on the job rather than the whole day.
