Metro

No toilet training?

They thought of just about everything for a VIP lounge at Brooklyn’s new Barclays Center — except toilet paper.

The swanky Calvin Klein Courtside Club didn’t even have a square to spare for members dining there, city health inspectors found during an Oct. 2 check.

Its restroom that day also wasn’t properly maintained, lacked “waste receptacles and a self-closing door,” and the club’s kitchen had an “improperly constructed” nonfood contact surface, records show.

The club – which is outside the Nets locker room – still scored well during the preliminary inspection, racking up just 4 violation points, and would’ve earned an “A” grade if the inspection had counted.

While the arena’s roughly 50 other eateries and concessionaires aren’t in danger of earning failing grades either, some were slapped with more serious violations.¶

The center’s Robert Mondavi Winery was hit with 13 points for having flies, not being “vermin-proof and other violations — while the Honda Club, another high-end lounge area, got 12 violation points after inspectors found flies and deemed the section wasn’t “vermin-proof.”

Grades of 13 points of under earn establishments an “A.” ¶

rcalder@nypost.com