Seahawks restricted free agent right tackle Garry Gilliam has signed an offer sheet with the NFC West rival 49ers, according to Sheil Kapadia of ESPN.com.  It’s a one-year, $2.2MM contract, including $1.4MM in guarantees, report ESPN’s Adam Schefter and Kapadia (Twitter links). Seattle will have five days to match the proposal, but if the team lets Gilliam go, it won’t receive any compensation for the 2014 undrafted free agent because it only assigned him an original-round tender (worth $1.797MM, with nothing guaranteed).

The 49ers hosted Gilliam on a visit last Thursday and subsequently offered him a multiyear deal, but he rejected it. By taking a one-year offer, Gilliam has set himself up to become an unrestricted free agent next offseason at the age of 27.

Since entering the NFL, Gilliam has totaled 30 starts, nearly all of which (29) came over the past two seasons. Gilliam’s performance across 14 appearances last season ranked just 71st among Pro Football Focus‘ 78 qualified tackles, making him one of the least effective parts of one of the league’s worst offensive lines. The 49ers’ O-line was also woeful, though PFF ranked their top right tackle, Trenton Brown (No. 55), higher than Gilliam.

The 49ers proposed a multi-year contract to Seahawks restricted free agent offensive lineman Garry Gilliam, but Gilliam rejected the offer, according to Sheil Kapadia of ESPN.com. San Francisco will continue negotiating with Gilliam, per Kapadia, who says the “lines of communication” are open between the two parties.

Gilliam met with the Niners earlier today on something of an exploratory mission, and he now has until April 21 to sign an offer sheet with San Francisco (or another club). The Seahawks own the right of first refusal, but if they decline to match the 49ers’ terms, they’ll receive no draft pick compensation for Gilliam. Seattle tendered Gilliam at the original round level, and Gilliam entered the league as an undrafted free agent.

If Gilliam can’t agree on a deal with the 49ers, he’s expected to sign his Seahawks RFA tender next week, reports Kapadia. That tender will pay him a non-guaranteed $1.797MM base salary for the 2017 season. If Gilliam — for some reason — doesn’t sign his tender by June 15, Seattle can cut his 2017 earnings down to $660K.

San Francisco’s offensive line is nothing special, and Gilliam could conceivably compete for time at right tackle. But it’s not clear the 26-year-old would be much of an upgrade, even on the 49ers’ roster, given that he graded as a bottom-10 offensive tackle in 2016, per Pro Football Focus.

The 49ers hosted Seahawks restricted free agent offensive tackle Garry Gilliam for a visit today, a source tells Field Yates of ESPN.com (on Twitter). Seattle tendered him at the original round level. Because Gilliam was undrafted, Seattle will not be entitled to any draft compensation if he is signed away.

Gilliam, 26, appeared in 14 games for the Seahawks last season and made 13 starts. Unfortunately, his performance left much to be desired as the entire Seahawks offensive line sagged. Gilliam finished out the year with an abysmal 38.0 overall score on Pro Football Focus, framing him as one of the ten worst qualified tackles in the NFL. The Seahawks wound up using him on 939 snaps, which would explain much of their O-Line woes. Fellow Seattle tackle George Fant, who was on the field for 792 snaps, had the worst grade of any tackle in the league at 27.6.

The Seahawks probably do not intend on using Gilliam as a starter again in 2017, but they would like to have him back as a reserve. The Niners, meanwhile, are likely kicking the tires on him as a depth signing. There will be cheaper and younger options in the draft, so the Seahawks would have to be pretty fond of him to sign him to an offer sheet.