The phrase 'a rough guideline' is correct and usable in written English.
You can use it when giving someone a basis for something or when providing them with a set of guidelines. For example, "Here is a rough guideline to help you plan your next road trip."
The daily specials can indicate either too much inventory or a chef's treasure, with price as a rough guideline.
3 activity stations, 3 groups (6-8, 9-11, 12-13 as a rough guideline), switching every 30 minutes.
As a rough guideline, each unit should be equivalent to 3-4 hofrs of work per week including the two hour class session.
Most of the details of recent stadium deals and proposals are in the public record, and they establish a rough guideline for how much a city will have to pay to keep or to obtain a team, he added.
Several witnesses are dead or cannot remember, much evidence is long lost, and Uganda's legal system is often unable to deal with the simplest crimes, let alone this one.Mr Mukiibi, who takes the official court record in longhand, is juggling 30 cases before him this session, over half of which involve the crime of "defilement" (the age of consent is treated as a rough guideline in much of Uganda).
Instead, it provides a rough guideline for easy selection of a suitable scheme.
Those national polls, with their consistent methodology, provide a rough guidelines to the contours of any presidential race.
As a rough-guideline, look to spend 20% of the value of your bike on locks.
Mark Kantrowitz, who runs the encyclopedic Finaid.org Web site, has developed one rough guideline: Students should borrow no more, in total, than whatever they think their first-year salary will be once they are finished (though ideally a lot less).
There was no established trail that we followed—just the rough guideline of the meridian itself.
Secretary Kerry reminded the AIPAC conference on March 3, 2014, in Washington, D.C., that the rough guidelines for an end-of-claims pact are already well-known to all those involved.
