The Windsor School Board voted Tuesday to issue layoff warnings affecting 47 full-time teaching positions as officials tackle deficit spending.

The state-mandated deadline for issuing notices to probationary or tenured teachers is Friday.

The final layoff total is expected to be slightly more than 23 full-time positions, according to Superintendent Tammy Gabel. But because districts are required to notify any teacher whose job may be affected, the district was forced to give notice to twice that many people, she said.

Officials have called the deep cuts "placeholders" as district negotiators continue to seek concessions from labor groups. Without cuts to salaries and benefits, the layoffs will stick, Gabel said last week.

The layoffs would increase class sizes in grades two and three to 28 students, and in grades four through 12, class sizes will grow to 34 students. Kindergarten and first grade will remain at 24 students.

The district currently is spending $44.5 million a year while bringing in $42 million.