HOW TO MEASURE
It is important to note that measurements are not always made from the same part of a game line and every game line is made up of 3 parts: The Inside of the game line, also called the front of the line, is the edge of the game line that is on the inside of the area being measured. The Center of the game line is self explanatory, and The Outside of the game line, also called the back of the line, is the edge of the line that is on the outside of the area that is being measured These terms are used to designate from which part of the line a measurement is taken. Refer to the game line markings and rule books for each sport for information on where measurements should be made from.
AKA ( WHAT WE'VE HEARD IT CALLED)

Base Line - end line, back line, boundary line, out of bounds line
Basketball Game Line - 2" line, stripe
Border - apron, band, belt Center Line - half court line, division line, 10 second line, mid-line, center line
Free-Throw Lane - key, hot spot, 3 second area, the paint, shaded lane, restricted area
Free-Throw Line - foul line, foul stripe
Post Up Boxes - lane space marks, lane ticks, blocks, hash marks, free-throw rebound places, free throw markers
No-Charge Semi-Circle - restricted area, charge circle, no charge zone
Side line - boundary line, out of bounds line Top of the key- high post, free-throw semi-circle, key hole, half moon
GAME LINE MARKINGS AND RULE BOOKS
The game line markings and rule books provided on this site have been linked to the original sources of the information. Please check with original sources when there is doubt about any information presented here.

BWF

(BADMINTON WORLD FEDERATION)

FIBA

(FEDERATION INTERNATIONALE DE BASKETBALL AMATEUR)

FIVB

(FEDERATION INTERNATIONALE DE VOLLEYBALL)

IFP

(INTERNATIONAL FEDERATION OF PICKLEBALL)

NBA

(NATIONAL BASKETBALL ASSOCIATION)

NCAA BASKETBALL

(NATIONAL COLLEGIATE ATHLETIC ASSOCIATION)

NCAA VOLLEYBALL

(NATIONAL COLLEGIATE ATHLETIC ASSOCIATION)

NFHS BASKETBALL

(NATIONAL FEDERATION OF HIGH SCHOOLS)

NFHS VOLLEYBALL

(NATIONAL FEDERATION OF HIGH SCHOOLS)

URSA

(UNITED STATES RACKETBALL ASSOCIATION)

WNBA

(WOMENS NATIONAL BASKETBALL ASSOCIATION)