The Knicks got shorter — on paper.

In compliance with an NBA mandate to become more accurate with listed heights in an attempt at full disclosure, the Knicks released their new measurements.

Recent draft picks Kevin Knox II, Frank Ntilikina and Mitchell Robinson each lost an inch. Knox was reduced to 6-foot-8 from 6-9. Ntilikina stepped down to 6-5. And Mitchell Robinson was scaled back to 7-foot. The Knicks had bumped Ntilkina from 6-5 to 6-6 before last season when he came back from France an inch taller.

Also, point guard Kadeem Allen, a two-way contract player, dropped from 6-3 to 6-2.

The standard operating procedure for listed heights is the player’s measurement without shoes, then adding an inch to that figure for sneakers.

The NBA appears concerned inflated heights gives off a perception of inaccurate information for the betting public.

“A consistent process has been created to ensure the integrity and accuracy of the data on team rosters,” NBA spokesman Mike Bass said.

The Knicks have a system in grading their players defensively and it’s not based just on numbers such as opponent shooting percentage.

Factoring into the grade is, for example, whether a player makes the smart defensive movement. If a player fails to cut across the lane as a weak-side defender to help a baseline driver, it’s a negative check.

“We do have a defensive grade that we keep of things that are really important to us,’’ Fizdale said. “So that way I don’t believe in just relying on the eye test. I like to have something that backs up what I’m seeing. We grade out the guys a lot and then go from there to help them improve.”

Allonzo Trier has been friends with Kevin Durant since the second-year Knicks guard attended high school in Oklahoma City. Asked about Durant’s decision to join the Nets, Trier said, “I’m his friend, first and foremost. I respect whatever decision he made. He wanted to go play basketball there, good for him. How am I going to be disappointed in a decision he makes?”

The Wizards, the Knicks’ opponent in their preseason opener on Monday, are considered one of the Eastern Conference’s bottom-feeders, leading to speculation shooting guard Bradley Beal could be put on the trading block. That would be of interest to the Knicks, considering their slew of expiring contracts. The Knicks’ signees can’t be dealt until Dec. 15. … Point guard Amir Hinton won’t travel to Washington because of a family issue.