The Giants remain immersed in their draft preparation, hunkered down in a meeting room at the team facility, putting the final touches on their draft board. With the No. 2-overall pick, there is not much need for hand-wringing or premature angst about who might be available for them.

We are at T-minus 12 days and counting before the first round is underway. What does The Post know? Based on what is being said, what is being heard, what can be surmised and what should be considered educated guesswork, here we go:

— It still does not appear likely the Giants will take a quarterback, at least not with the No. 2 pick. Their extensive study of all the top prospects included dinner, tours of the team facility and plenty of football talk. By the end of this process, they will know all they need to know about Sam Darnold, Josh Rosen, Baker Mayfield and Josh Allen. Impressions will be made, but the facts cannot be altered: The body of work of these players is not commensurate with what the Giants require the No. 2 pick to be.

“You got to do your due diligence when you’re there at second, if you don’t do to these workouts at No. 2 and you really don’t have an interest in these guys, then you’re tipping your hand,’’ a source with knowledge of the Giants’ draft thinking told The Post.

— The Giants view Saquon Barkley as a near-perfect prospect. They think he’s a better player than Ezekiel Elliott, who went No. 4 to the Cowboys in 2016. All Elliott has accomplished is average 104.6 yards in his 25 NFL games, along with 22 rushing touchdowns in two seasons. He also has an entire offense built around him. The main difference? Barkley is a far superior pass-catcher. Plus, there are absolutely no character issues or concerns with Barkley.

“I thought all along this is the guy Dave wants,’’ said a national NFL scout who knows Gettleman from crossing paths with him on the road over the years. “And he might get him, if Cleveland is dumb enough not to take him at No. 1.”

— There is no doubt North Carolina State defensive end Bradley Chubb is in the mix. His visit with the Giants went extremely well — he made a positive impact on everyone in the building by wearing a suit, giving off an ultra-professional vibe — and there is an understanding if they pass him up, there is not another pass-rusher remotely close to his level. There is also this: With his first two picks as the general manager of the Panthers, Gettleman selected defensive linemen. And this: Gettleman believes you win with big people. Chubb does not exactly classify as one of Gettleman’s “hog-mollies’’ — mainly because he is so darn talented — but he is a physical force on the defensive line.

— Quenton Nelson will not be the pick at No. 2. This is not because the Giants have any reservations with the player — they do not — but it is a matter of positional value. The second-overall pick is too high to take a guard. The Giants do not view Nelson as a viable option to move outside to tackle. If they trade down (this is unlikely), moving to No. 5 to give the Broncos the No. 2 pick, then Nelson makes sense, as the Giants would gain additional draft picks and still get one of the top three players on their board.

— The onerous criteria Gettleman established for this No. 2 pick will be what likely steers the Giants away from a quarterback. Remember, Gettleman insists the second pick in the draft must be a player who projects to be a Hall of Famer and also is worthy of the second-overall selection in any draft.

“I don’t think Dave will take a quarterback,’’ the national scout said. “I don’t see it. I could see Chubb putting on that gold jacket. I could see Nelson putting on that gold jacket. Barkley, no question. If you have a crystal ball and say, ‘This guy is gonna be an annual All-Pro and make it to the Hall of Fame,’ Barkley would be the No. 1 guy.’’

— Not picking a quarterback really has very little to do with Davis Webb. There is no magic formula Gettleman and head coach Pat Shurmur can conjure up to project what Webb will become. His intangibles are all off-the-chart positive, he has great size and his work ethic is beyond reproach. There is a chance Webb could be the successor to Eli Manning. The Giants have no way to know for sure before this draft. If they truly like a quarterback, they will take one, and Webb’s presence on the roster would not be a factor, at all.

“You can’t make this decision based on Davis Webb,” an NFL source said.