The San Francisco 49ers never seemed too worried about not getting a new deal done with future Hall of Fame left tackle Trent Williams despite rumors and reports of a major standoff that could've resulted in a trade or outright release.
With the new deal now in place, the Niners can at least postpone their need for a successor, while Williams secures more guaranteed money and better security in 2026 and immediately thereafter.
However, the specific details of Williams' new contract weren't fully known until they began leaking out just weeks removed from the 2026 NFL Draft.
And while those contract aspects are certainly interesting, there's a reported caveat that should put San Francisco in a generous position heading deeper into the offseason.
49ers now boast NFL's most top-51 salary cap space
The folks over at Spotrac combed through Williams' new deal and reported the reworked contract would pay him $24.5 million this year, and it also freed up a whopping $23.8 million in salary cap space.
That's significant.
Still working to confirm full guarantee structure, but it appears that OT Trent WIlliams' renegotiation with the #49ers will pay him $24.5M in 2026 (down from $33M), while also freeing up $23.8M of cap space this season.
— Spotrac (@spotrac) May 5, 2026
San Francisco now holds a league-high $67M of Top 51 space…
Now, at least according to Spotrac, the 49ers boast $67.36 million in top-51 cap space, the most in the league.
For those not wholly familiar with what the top-51 rule is, it applies to a team's 51 biggest contracts during the offseason period when rosters are no more than 90 players. Simply put, only the top 51 contracts count against the cap, largely cutting out the remaining deals from the equation.
What this also means is the Niners have a great deal of available money to spend on free agents, even after they come to terms with rookies drafted last April.
So, to counter what general manager John Lynch said earlier this offseason about not being able to "afford" free-agent defensive end Joey Bosa, thereby pairing him with his younger brother, Nick Bosa, it seems as if Spotrac's data would greatly suggest otherwise.
It'll be interesting to see whether or not Lynch and Co. use the Williams reworked deal as a means to reinforce the roster however possible as the offseason continues.
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