The 49ers have received inquiries from teams regarding the availability of holdout guard Alex Boone but are not interested in dealing him, a source told CSNBayArea.com.

Another source said the 49ers have told teams that they would be willing to part with Boone for a first- or second-round draft pick -- a price that is considered exorbitant for an offensive guard.

Boone, who is under contract for two more seasons, has skipped the first four weeks of training camp and is subject to fines of $30,000 daily.

He also sat out the team's offseason program, including a mandatory minicamp.

The 49ers made Boone a contract offer that added new years to his existing deal that is scheduled to pay $2 million this season and $1.2 million in 2015.