The 49ers have selected two offensive linemen in each of the last three drafts, and they are eying big-bodied blockers again this year. The interior of the offensive line seems to be set with Joe Looney and Daniel Kilgore both able to play guard and center.
It's offensive tackle where the 49ers are a bit light. Veteran Leonard Davis, who could have played tackle in a pinch last year, has not been pursued in free agency. The team's only backup is Kenny Wiggins (Elk Grove High) who spent last season on injured reserve. Of course, guard Alex Boone could play either of the tackle spots in case of injury to a starter, but doing so would cause disruptions to two positions -- tackle and Boone's original spot, right guard.
The 49ers have been looking at tackles in the upcoming draft, albeit ones who will be available after round 1.
* David Quessenberry. The 6-5, 294 San Jose State offensive linemen is being looked at as someone who can play all five spots on the offensive line. He met with Jim Harbaugh when the 49ers coach visited San Jose State last month, and is invited to visit Santa Clara, presumably for the 49ers' local pro day on Wednesday. Like 49ers left tackle Joe Staley, Quessenberry began his college career as a tight end. He never missed a game at San Jose State.
* Luke Marquardt. Every year, there's a mystery offensive linemen from a small school that teams are eager to check out. This year, it's Marquadt, who played at Azusa Pacific in Southern California. Marquardt has Boone-like size at 6-8, 315 pounds, and showed good strength in lifting 225 pounds 31 times in Indianapolis. His level of competition is a concern as is the fact that he missed the 2012 season with a foot injury and has not worked out this offseason. Marquardt will visit the 49ers on Friday.
In addition, Colorado offensive tackle David Bakhtiari had a formal meeting with the 49ers at the scouting combine. Bakhtiari is the younger brother of former 49ers linebacker Eric Bakhtiari. They grew up in Burlingame, which makes David eligible for next week's local pro day.
You have all sorts of draft questions. I have all sorts of projections, conjectures and hypotheses. Like the homeless man outside the Starbucks, I'm eager to share them. Join me for a 49ers chat that begins today at 11 a.m. Www.sacbee.com/live.
-- Matt Barrows