The New York Times is moving to a smaller format starting Monday, cutting 1.5 inches from its width and moving to what is becoming a newspaper industry standard of 12 inches.

The change will result in the space for news being reduced by about 10 percent, but the paper will make up for about half of that decline by adding extra pages. Additional pages may also be added from time to time to accommodate major news stories, she said.

It will result in cost savings of about $10 million per year, spokeswoman Diane McNulty said.

The Times recently raised its newsstand price from $1 to $1.25.

Several other major newspapers have already adopted the 12-inch format, including The Wall Street Journal, published by Dow Jones & Co., which went to the new size at the beginning of the year; The Washington Post; and the Los Angeles Times, published by Tribune Co.

The change at The New York Times was originally expected to occur in mid-2008, but McNulty said the company was able to get its presses reconfigured sooner than anticipated.

The look of the paper will remain essentially the same, she said, though the headlines will become slightly smaller. The news columns will also become slightly narrower.

Going to the smaller, more standard size will also allow the paper to sell ad space that more closely conforms with the sizes used in other papers, McNulty said. Ads had needed to be resized to fit in the Times' pages.

Newspaper publishers are looking for various ways to save money. Advertising revenues have been slumping across the newspaper industry amid shifting reader habits, declining circulation and a migration of readers and advertising dollars to the Internet.