At PFF, we’ve put out our NFL preseason offensive line rankings for a handful of years now and they are never controversial and everyone always nods in agreement while reading. That won’t change this year as I’ve once again been put in charge of assembling the indisputable order of all 32 offensive lines in the NFL for the upcoming season. Using a combination of grades, college evaluations and age projections, we’ve come to the following starting-five rankings.

A year ago, the Philadelphia Eagles earned the top spot heading into preseason, and after fueling a Super Bowl victory, they’ve once again placed themselves firmly atop our list. From there, we’ve seen some shuffling as three new lines have broken into the top 10.

Without further ado, here are the definitive offensive line rankings for the 2018 season:

[Editor's note: The grades listed below are from the 2017 season alone, including PFF college grades for all incumbent rookies.]

Projected starting lineup:

Left Tackle: Jason Peters, 86.4 overall grade

Left Guard: Stefen Wisniewski, 74.8

Center: Jason Kelce, 91.3

Right Guard: Brandon Brooks, 88.3

Right Tackle: Lane Johnson, 86.2



2017 season-end rank: 1st (no change)

There is a little projection here as we’re assuming nine-time Pro Bowl left tackle Jason Peters will return to form after tearing his ACL and MCL in October of last year. At age 36, Peters is no shoe-in to do so. If he does though, the Eagles bring back the league’s best tackle tandem along with a top-five center in Jason Kelce and top-10 guard in Brandon Brooks.

PROJECTED STARTING LINEUP:

Left Tackle: Tyron Smith, 79.7 overall grade

Left Guard: Connor Williams, 85.7* (2017 college grade)

Center: Travis Frederick, 90.8

Right Guard: Zack Martin, 92.2

Right Tackle: La'el Collins, 50.7



2017 season-end rank: 4th (+2)

The great NFC East debate rages on with the Cowboys once again playing second fiddle. The three All-Pros aren’t enough to fill the two holes at left guard and right tackle – although those could be getting sealed this season. Rookie second-round pick Connor Williams should slate in nicely at left guard as we had a first-round grade for the Texas product even at tackle. At right tackle, La’el Collins rebounded after some early season struggles to at least flash some competent play down the stretch. If he can improve on his 51 total pressures allowed in 2017, they’re well on their way to earning back that No. 1 spot.

PROJECTED STARTING LINEUP:

Left Tackle: Jake Matthews, 80.8 overall grade

Left Guard: Andy Levitre, 78.0

Center: Alex Mack, 88.9

Right Guard: Brandon Fusco, 76.0

Right Tackle: Ryan Schraeder, 77.5



2017 season-end rank: 2nd (-1)

One need look no further than the divisional-round matchup with the Rams to know that guard is an issue for the Falcons. In that game, Aaron Donald racked up 11 pressures against the Falcons interior (albeit without Andy Levitre). They’ve alleviated that to some degree with the signing of journeyman Brandon Fusco from San Francisco (76.0 overall grade on 1,083 snaps last season). They’ve been solid everywhere else though of late, especially at center where Alex Mack has posted back-to-back 88.0-plus graded seasons for the Falcons.

PROJECTED STARTING LINEUP:

Left Tackle: Alejandro Villanueva, 74.2 overall grade

Left Guard: Ramon Foster, 48.1

Center: Maurkice Pouncey, 54.6

Right Guard: David DeCastro, 91.7

Right Tackle: Marcus Gilbert, 81.5



2017 season-end rank: 12th (+8)

2018 marks the third-straight season that the Steelers will have their starting five intact heading into the year. Expectations were ridiculously high for them heading into 2017, but an injury to Marcus Gilbert and uncharacteristic down year from Ramon Foster hampered their effectiveness. Still the entire starting five is 30 years old or younger and capable of recapturing their 2016 form.

PROJECTED STARTING LINEUP:

Left Tackle: Taylor Lewan, 80.1 overall grade

Left Guard: Quinton Spain, 73.6

Center: Ben Jones, 74.0

Right Guard: Josh Kline, 75.8

Right Tackle: Jack Conklin, 81.8



2017 season-end rank: 5th (no change)

Taylor Lewan and Jack Conklin have both been top-16 graded offensive tackles each of the past two seasons. That doesn’t look to be changing anytime soon. The Titans interior isn’t quite on the same level, but even their lowest-graded starter a season ago – left guard Quinton Spain – earned a 73.6 overall grade. With no holes and a dominant edge duo, the Titans will once again be one of the best lines in the NFL.

PROJECTED STARTING LINEUP:

Left Tackle: Terron Armstead, 78.2 overall grade

Left Guard: Andrus Peat, 46.9

Center: Max Unger, 50.0

Right Guard: Larry Warford, 76.7

Right Tackle: Ryan Ramczyk, 84.2



2017 season-end rank: 9th (+3)

No offensive line earned a higher pass-blocking efficiency than the Saint' unit did a season ago. One of the biggest reasons for that was the superb play from rookie tackle Ryan Ramczyk in Zach Strief’s stead. Ramczyk’s 96.6 pass-blocking efficiency was fifth best among starting offensive tackles. Their key though, will be the health of left tackle Terron Armstead who has managed only 1,064 snaps over the past two seasons after earning a 90.6 overall grade in 2015.

PROJECTED STARTING LINEUP:

Left Tackle: Donald Penn, 78.8 overall grade

Left Guard: Kelechi Osemele, 78.1

Center: Rodney Hudson, 81.6

Right Guard: Gabe Jackson, 69.1

Right Tackle: Kolton Miller, 87.5* (2017 college grade)



2017 season-end rank: 8th (+1)

The Raiders were among the most dominant offensive lines in 2016, but that changed drastically in 2017. All four returning starters graded out worse in 2017 than they did in 2016. There’s no denying the talent is still there though, as only left tackle Donald Penn checks in at over 30 years old this season. A lot will come down to how quickly rookie right tackle and first-round pick Kolton Miller can assimilate. PFF had Miller as our seventh-ranked tackle in the class and a third-round grade.

PROJECTED STARTING LINEUP:

Left Tackle: Taylor Decker, 60.5 overall grade

Left Guard: Frank Ragnow, 93.7* (2017 college grade)

Center: Graham Glasgow, 76.1

Right Guard: T.J. Lang, 79.1

Right Tackle: Rick Wagner, 81.9



2017 season-end rank: 19th (+11)

The Lions have quietly built an offensive line that could be the best Matthew Stafford has ever played behind. After signing right guard T.J. Lang and right tackle Rick Wagner last offseason, the Lions drafted PFF’s top-rated college center, Arkansas’ Frank Ragnow, in the first round this April. Now with Taylor Decker a year removed from a torn pectoral, the Lions have a chance to throw out five quality starters for the first time in a while.

PROJECTED STARTING LINEUP:

Left Tackle: David Bakhtiari, 89.9 overall grade

Left Guard: Lane Taylor, 68.7

Center: Corey Linsley, 51.7

Right Guard: Justin McCray, 40.4

Right Tackle: Bryan Bulaga, 68.9



2017 season-end rank: 13th (+4)

What the Packers have – when healthy – that few in the NFL can boast are a pair of bookend tackles that you feel comfortable putting on an island snap after snap. No chips or slides necessary, David Bakhtiari and Bryan Bulaga are as good as it gets in pass protection. Bakhtiari was the highest-graded left tackle in pass protection this past season (90.5) while Bulaga earned the highest pass protection grade of any right tackle his last healthy season in 2016 (89.3). They have a glaring hole at right guard, but do hold a handful of possible options who could step in there.

PROJECTED STARTING LINEUP:

Left Tackle: Andrew Whitworth, 79.8 overall grade

Left Guard: Rodger Saffold, 84.6

Center: John Sullivan, 74.6

Right Guard: Jamon Brown, 52.1

Right Tackle: Rob Havenstein, 77.9



2017 season-end rank: 6th (-4)

The Rams offensive line was arguably the most-improved unit in the NFL in 2017 after the additions of left tackle Andrew Whitworth and center Jon Sullivan. How long they’ll remain at that level remains to be seen though as Sullivan turns 33 this year and Whitworth 37. Whitworth already showed signs of slowing down late in the season as his Wild Card performance against the Falcons was the lowest-graded game of his entire career.

PROJECTED STARTING LINEUP:

Left Tackle: Trent Brown, 79.3 overall grade

Left Guard: Isaiah Wynn, 88.1* (2017 college grade)

Center: David Andrews, 81.8

Right Guard: Shaq Mason, 81.1

Right Tackle: Marcus Cannon, 78.1



2017 season-end rank: 3rd (-8)

While the interior for the Patriots is solid, the big questions come at tackle. Marcus Cannon is coming back from an ankle injury that placed him injured reserve last year and has only one season graded above 80.0 in his career. Trent Brown on the other hand is currently penciled in at left tackle after having spent his career in San Francisco on the right side and only cracking an overall grade above 70.0 in 2017. First-round pick Isaiah Wynn could be the dark horse here to win the starting left tackle job as he allowed all of four pressures last season at the position for Georgia.

PROJECTED STARTING LINEUP:

Left Tackle: Trent Williams, 82.1 overall grade

Left Guard: Shawn Lauvao, 37.9

Center: Chase Roullier, 56.0

Right Guard: Brandon Scherff, 83.2

Right Tackle: Morgan Moses, 70.5



2017 season-end rank: 21st (+9)

Injuries absolutely ravaged the Redskins offensive line in 2017, but this was one of the best lines in the NFL prior to last year. The two names to watch here are center Chase Roullier and right tackle Morgan Moses. Roullier was one of our favorite sleepers in the 2017 draft out of Wyoming yet only earned a 56.0 overall grade as a rookie in 457 snaps. Moses on the other hand had established himself as one of the best right tackles in the game before taking a step back with a 70.5 overall grade last season. They’ll need both at their best to crack the top 10 this year.

PROJECTED STARTING LINEUP:

Left Tackle: Charles Leno Jr., 80.4 overall grade

Left Guard: James Daniels, 89.0* (2017 college grade)

Center: Cody Whitehair, 74.2

Right Guard: Kyle Long, 73.0

Right Tackle: Bobby Massie, 69.9



2017 season-end rank: 11th (-2)

We had this line ranked fifth at this time a season ago, but that was before Cody Whitehair disappointed in his sophomore campaign and Josh Sitton moved on to Miami. The interior that was so strong in 2016 and fueled a huge rookie campaign from Jordan Howard that all of a sudden looks much different. That’s not necessarily a bad thing though. Rookie second-round pick James Daniels out of Iowa slots into left guard and was the highest run-blocking graded center in the country last year at only 20 years old. If Whitehair can get back to his rookie level which saw him earn an 85.9 overall grade and Kyle Long can stay healthy, this will be a top line once again.

PROJECTED STARTING LINEUP:

Left Tackle: Shon Coleman, 53.0 overall grade

Left Guard: Joel Bitonio, 85.2

Center: JC Tretter, 70.5

Right Guard: Kevin Zeitler, 81.1

Right Tackle: Chris Hubbard, 69.6



2017 season-end rank: 14th (no change)

The Browns have slowly built one of the best interiors in the NFL, but after the departure of Joe Thomas, they have some glaring question marks at tackle. Shon Coleman was the weak link on the line at right tackle a season ago, allowing 64 total pressures on the season. He’ll now be asked to flip to the left side – no easy task. If that doesn’t work out, left guard Joel Bitonio or second-round pick Austin Corbett could be asked to fill that role. On the right side, the Browns signed former Steelers backup Chris Hubbard to fill the void. He’s played all of 1,238 snaps in his five-year career, but filling in for injuries over the past two seasons he’s yielded all of 39 pressures in 673 pass-blocking snaps (about a season’s worth).

PROJECTED STARTING LINEUP:

Left Tackle: Cam Robinson, 37.6 overall grade

Left Guard: Andrew Norwell, 88.8

Center: Brandon Linder, 84.7

Right Guard: A.J. Cann, 52.5

Right Tackle: Jermey Parnell, 79.0



2017 season-end rank: 15th (no change)

Jacksonville made the splash signing of the offseason when the inked Andrew Norwell – PFF’s third-highest graded guard in 2017 – to a 5-year, $66.5-million deal. That doesn’t completely alleviate the holes in the lineup though as Cam Robinson (37.6 overall grade) and A.J. Cann (52.5 overall grade) are still penciled in at left tackle and right guard, respectively. Robinson will have to make huge strides from a rookie campaign that saw him finish 47th out of 55 qualifying tackles in pass-blocking efficiency.

PROJECTED STARTING LINEUP:

Left Tackle: Joe Staley, 87.4 overall grade

Left Guard: Laken Tomlinson, 70.7

Center: Weston Richburg, 71.3

Right Guard: Joshua Garnett, 39.6* (2016 grade)

Right Tackle: Mike McGlinchey, 90.6* (2017 college grade)



2017 season-end rank: 20th (+4)

Of all the teams on the list, the 49ers have some of the best potential to outplay their current ranking. The reason being unfulfilled potential. Laken Tomlinson and Joshua Garnett are both former first-round picks who have yet to fulfill their potential. Tomlinson took huge strides forward though last season with a career high 70.7 overall grade while Garnett never got to build on a disappointing rookie campaign (39.6 overall grade) as he missed all last year with a knee injury. Both were highly touted by us here at PFF coming out of college as well. Then you add Weston Richburg – who earned an 86.5 grade back in 2015 – and Mike McGlinchey – PFF’s top-rated tackle in the 2018 draft.

PROJECTED STARTING LINEUP:

Left Tackle: Anthony Castonzo, 82.0 overall grade

Left Guard: Quenton Nelson, 95.1* (2017 college grade)

Center: Ryan Kelly, 39.9

Right Guard: Matt Slauson, 45.0

Right Tackle: Austin Howard, 71.6



2017 season-end rank: 25th (+8)

There are a lot of unknowns for the Colts up front, but for the first time in a long time, at least there’s hope. Quenton Nelson plugs in immediately at left guard and all signs in his college evaluation point to him being a quality, if not Pro-Bowl level starter immediately. The wildcards here are former high draft picks Ryan Kelly and Jack Mewhort. Mewhort looked well on his way to becoming one of the best guards in football before injuries struck and he was limited to only 979 snaps over the past two seasons. Kelly was solid as a rookie, but he too battled injuries this past year and floundered to a 39.9 overall grade. At least now they have second-round selection Braden Smith as depth in case injuries strike again.

PROJECTED STARTING LINEUP:

Left Tackle: Eric Fisher, 70.4 overall grade

Left Guard: Bryan Witzmann, 40.6

Center: Mitch Morse, 44.9

Right Guard: Laurent Duvernay-Tardif, 78.2

Right Tackle: Mitchell Schwartz, 80.0



2017 season-end rank: 16th (-2)

The Chiefs are the definition of a solid, if unspectacular, unit. Mitchell Schwartz is one of the best right tackles in the game – earning an 80.0 overall grade last season – but pretty much everyone else on the line is right around average for their position. That gets the job done in today’s NFL though where oftentimes a line is only as strong as its weakest link.

PROJECTED STARTING LINEUP:

Left Tackle: Garett Bolles, 68.8 overall grade

Left Guard: Ronald Leary, 81.2

Center: Matt Paradis, 75.2

Right Guard: Connor McGovern, 40.2

Right Tackle: Jared Veldheer, 54.3



2017 season-end rank: 23rd (+4)

The Broncos have suffered through arguably the worst right tackle situation in the NFL over the past two seasons, but there’s reason to think that will change in 2018. Jared Veldheer was a mess early last season in Arizona switching from the left to right side. He allowed only 20 pressures though in his last 10 games in 2017 after allowing 19 in his first three. That late-season play is more in line with the Veldheer we’ve seen throughout his career and could be the answer to the Broncos pass protection woes.

PROJECTED STARTING LINEUP:

Left Tackle: Laremy Tunsil, 59.5 overall grade

Left Guard: Josh Sitton, 86.0

Center: Daniel Kilgore, 51.0

Right Guard: Jesse Davis, 40.2

Right Tackle: Ja'Wuan James, 80.0



2017 season-end rank: 29th (+9)

The guard position in Miami has seemingly been cursed for some time now. Last year, the revolving door of Jesse Davis, Jermon Bushrod, Ted Larsen and Anthony Steen combined to give up 69 pressures (the average guard duo allows 62). There’s reason to think that number could drop drastically now though with the addition of Josh Sitton who’s allowed only 60 pressures over the last five seasons, combined. The loss of Mike Pouncey might not sting as much as his reputation might suggest as well. New center Daniel Kilgore actually graded higher than Pouncey a season ago, albeit barely (51.0 vs. 46.5).

PROJECTED STARTING LINEUP:

Left Tackle: Matt Kalil, 50.8 overall grade

Left Guard: Jeremiah Sirles, 45.2

Center: Ryan Kalil, 46.6

Right Guard: Trai Turner, 76.7

Right Tackle: Daryl Williams, 86.5



2017 season-end rank: 10th (-11)

The loss of Norwell is going to hurt. While the backup plan currently looks like some combination of Jeremiah Sirles (45.2 overall grade in 2017) or Amini Silatolu (40.5), it will be interesting to see if they kick Taylor Moton into guard eventually. He was one of the highest-graded guards in the country as a junior for Western Michigan before switching to tackle as a senior. Moton was also one of PFF’s favorite offensive linemen in last year’s draft yet saw only 70 snaps as a rookie.

PROJECTED STARTING LINEUP:

Left Tackle: Donovan Smith, 51.9 overall grade

Left Guard: Ali Marpet, 79.0

Center: Ryan Jensen, 74.9

Right Guard: Caleb Benenoch, 42.5

Right Tackle: Demar Dotson, 85.0



2017 season-end rank: 17th (-5)

The signing of Ryan Jensen could pay big dividends off for Tampa Bay as it not only adds a quality starter to the lineup (Jensen earned a 74.9 overall grade last year), but it also moves Ali Marpet back to his more natural guard position where he had a career year in 2016. The issue here is still left tackle Donovan Smith. Last season was the first in which he didn’t allow 50-plus pressures and yet was still below average by allowing 42.

PROJECTED STARTING LINEUP:

Left Tackle: Russell Okung, 77.4 overall grade

Left Guard: Dan Feeney, 48.5

Center: Mike Pouncey, 46.5

Right Guard: Forrest Lamp, 91.7* (2016 college grade)

Right Tackle: Joe Barksdale, 50.7



2017 season-end rank: 24th (+1)

There is a lot of projection here with Dan Feeney and Forrest Lamp in Year 2 as well as Mike Pouncey, but it’s impossible to think things could get worse. Kenny Wiggins allowed the most pressures of any guard in the league last year (41) while Spencer Pulley allowed the most of any center (38). Simply getting those two out of the lineup has to be worth something.

PROJECTED STARTING LINEUP:

Left Tackle: Ronnie Stanley, 76.2 overall grade

Left Guard: Alex Lewis, 45.6* (2016 grade)

Center: Matt Skura, 37.3

Right Guard: Marshal Yanda, 84.4

Right Tackle: James Hurst, 42.4



2017 season-end rank: 18th (-6)

The fate of the Ravens line falls in the hands – or more accurately the ankle – of Marshal Yanda. The future Hall of Famer has been unquestionably the best guard in football the past few years, but without him, Joe Flacco turned into a gun shy, checkdown artist last year. Turning 34 in September, there’s no certainty that Yanda ever returns to form.

PROJECTED STARTING LINEUP:

Left Tackle: Nate Solder, 75.7 overall grade

Left Guard: Will Hernandez, 91.4* (2017 college grade)

Center: Jon Halapio, 44.0

Right Guard: Patrick Omameh, 53.6

Right Tackle: Ereck Flowers, 51.5



2017 season-end rank: 26th (+1)

After making Nate Solder the highest paid tackle in football and drafting Will Hernandez in the second-round, the Giants offensive line has to be better than last year. Neither of those guys are sure-fire miracle workers though as Solder himself gave up 51 pressures a season ago (Ereck Flowers has averaged 58 a season for his career).

PROJECTED STARTING LINEUP:

Left Tackle: Cordy Glenn, 68.1 overall grade

Left Guard: Clint Boling, 75.5

Center: Billy Price, 83.8* (2017 college grade)

Right Guard: Trey Hopkins, 48.3

Right Tackle: Jake Fisher, 46.2



2017 season-end rank: 28th (+2)

The Bengals still ranking 26th after the addition of left tackle Cordy Glenn and first-round center Billy Price should tell you all you need to know about how bad they were a season ago. For as much of an upgrade as Glenn will be, there is no certainty Price will be the same. He had a third-round grade from PFF and his struggled in pass protection with 13 pressures allowed last season.

PROJECTED STARTING LINEUP:

Left Tackle: D.J. Humphries, 74.9 overall grade

Left Guard: Mike Iupati, 49.1

Center: A.Q. Shipley, 45.7

Right Guard: Justin Pugh, 52.4

Right Tackle: Andre Smith, 47.9



2017 season-end rank: 31st (+4)

This group will look much different than the 2017 version – which can’t be a bad thing. The only problem is that this group – more than maybe any other in the NFL – has serious injury concerns. Almost every starter has missed significant time in each of the past two seasons and the Cardinals don’t exactly have quality depth to make up for it. If Mike Iupati, Justin Pugh and Andre Smith all return back to their career-best form, this could be a top-10 group. The odds of that happening, or even them playing all 16 games, seems incredibly slim after all the injuries they’ve suffered.

PROJECTED STARTING LINEUP:

Left Tackle: Riley Reiff, 48.6 overall grade

Left Guard: Nick Easton, 41.5

Center: Pat Elflein, 43.2

Right Guard: Mike Remmers, 69.6

Right Tackle: Rashod Hill, 43.6



2017 season-end rank: 22nd (-6)

While the Vikings line certainly made strides in 2017, Case Keenum was still the third-most frequently pressured quarterback in the NFL. After investing heavily in it last offseason, their starting five may very well remain status quo heading into 2018. The only likely change is if second-round pick Brian O’Neill can win the starting right tackle job. Based on his 1-on-1 performances at the Senior Bowl though, where he won only 27 percent of his reps, he may not be NFL ready anytime soon.

PROJECTED STARTING LINEUP:

Left Tackle: Dion Dawkins, 74.5 overall grade

Left Guard: Vladimir Ducasse, 75.5

Center: Russell Bodine, 46.8

Right Guard: John Miller, 39.1

Right Tackle: Jordan Mills, 65.7



2017 season-end rank: 7th (-22)

The Bills have about as much to replace talent-wise as any offensive line in the NFL. That’s what happens when you lose your top-three starters (LT Cordy Glenn, LG Richie Incognito, C Eric Wood) along your offensive line (although Glenn only played 275 snaps this past year). Outside of rookie Dion Dawkins – who performed admirably with a 74.5 overall grade as a rookie – there’s not much room for ‘upside’ among their potential starters.

PROJECTED STARTING LINEUP:

Left Tackle: Duane Brown, 77.9 overall grade

Left Guard: Ethan Pocic, 35.7

Center: Justin Britt, 66.9

Right Guard: D.J. Fluker, 42.3

Right Tackle: Germain Ifedi, 48.6



2017 season-end rank: 27th (-3)

Duane Brown at least brought some semblance of competency to the Seahawks line towards the end of last season. Prior to the trade, the line had a pass-blocking efficiency of 71.5, while afterwards that number jumped to 78.4 (right around league average). The right side of the line is still ugly though as D.J. Fluker and Germain Ifedi had pass-blocking grades of 32.4 and 71.5 last year, respectively.

PROJECTED STARTING LINEUP:

Left Tackle: Kelvin Beachum, 72.7 overall grade

Left Guard: James Carpenter, 41.1

Center: Spencer Long, 56.0

Right Guard: Brian Winters, 36.8

Right Tackle: Brandon Shell, 65.3



2017 season-end rank: 30th (-1)

While the Jets may not end up 31st at season's end, this ranking is more indicative of the little room for optimism along the front. If there is any silver lining though it’s that things can’t get any worse for them at center than they were last year. Wesley Johnson’s 31.3 grade was one of the lowest we’ve ever given at the position. For all of new-center Spencer Long’s struggles last year, there’s no doubt he’ll be an upgrade.

PROJECTED STARTING LINEUP:

Left Tackle: Julie'n Davenport, 47.6 overall grade

Left Guard: Zach Fulton, 68.8

Center: Nick Martin, 44.9

Right Guard: Senio Kelemete, 48.3

Right Tackle: Martinas Rankin, 71.1* (2017 college grade)



2017 season-end rank: 32nd (no change)

After fielding one of the worst offensive lines we’ve seen in the PFF era, there’s little reason to think they’ll rank anything other than 32nd again this upcoming season. While injuries certainly played a role – and it’s likely center Nick Martin could bounce back from an ugly 44.9 overall grade last season – they’ve pinned their hopes to other team's castoffs and a fourth-rounder from 2017 to protect Deshaun Watson.