National Federation of State High
1 ELUR • SHFN
✦ NF ✦
HS
School Associations
Officials Education · NFHS Basketball Rule 1
EST. 1920
T H E N AT I O N A L L E A D E R F O R H I G H S C H O O L AT H L E T I C S & A C T I V I T I E S
NFHS Basketball — Rule 1: Court & Equipment
P L AY I N G CO U RT D I M E N S I O N S , B A C K B O A R D S , B A S K E TS , B A L L S P E C I F I C AT I O N S & B E N C H
LO C AT I O N S
ORGANIZATION National Federation of State High School RULE SECTION Rule 1 — Court and Equipment
Associations (NFHS)
ACADEMIC YEAR TOTAL QUESTIONS 25 Questions
SUBJECT AREA Court Markings, Backboard Specs, Basket FORMAT Multiple Choice — Select the Single Best
Ring Standards, Ball Requirements Answer
RULE 1 EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question based on NFHS Basketball Rule 1 (Court and Equipment).
▸ Content covers playing court dimensions (1-1), sidelines/end lines (1-2), center circle/division line (1-3), three-point line (1-4),
free-throw lane (1-5), backboards (1-7/1-8/1-9), baskets (1-10/1-11), ball specifications (1-12), and bench/coaching box locations
(1-13).
▸ Pay careful attention to precise measurements: ideal court 84x50 ft, three-point radius 19'9", free-throw line 15 ft from
backboard face, ring at 10 ft, coaching box 28 ft.
SECTION I — COURT DIMENSIONS, MARKINGS & EQUIPMENT Questions 1 –
SPECIFICATIONS 25
1. Per Rule 1-1, what are the ideal playing court dimensions for NFHS basketball?
A. 94 feet by 50 feet — the maximum allowed dimensions
B. 84 feet by 50 feet — the ideal measurements
C. 100 feet by 50 feet — NBA standard
D. 74 feet by 42 feet — minimum for high school play
CORRECT ANSWER B — 84 feet by 50 feet — the ideal measurements
RATIONALE Rule 1-1 states the court should be no greater than 94 ft by 50 ft, but the IDEAL measurements are 84 ft by 50
ft. The court must be clear of obstructions. This is a key distinction — 94x50 is the maximum; 84x50 is the
recommended ideal for high school play. The NBA court is 94 feet; NFHS prefers 84 feet. The division line
divides the court into two equal parts (1-3-2).
, 2. Per Rule 1-2-1, how much unobstructed space is required outside the boundaries of the court?
A. At least 3 feet, with 10 feet preferred
B. At least 6 feet at all points
C. No requirement — walls may be adjacent to the end lines
D. At least 15 feet on the sidelines only
CORRECT ANSWER A — At least 3 feet, with 10 feet preferred
RATIONALE Rule 1-2-1 requires at least 3 feet of unobstructed space outside the boundaries, with 10 feet preferred. If
there is less than 3 feet on an unofficial court, Rule 1-2-2 requires a narrow broken line marked on the court
parallel with and 3 feet inside that boundary. This safety margin is critical for player protection.
3. What are the specifications for the center restraining circle per Rule 1-3-1?
A. Radius of 12 feet measured to the inside edge; line width of 1 inch
B. Radius of 6 feet measured to the outside edge; minimum 1/4 inch line, maximum 2 inches wide; spaces for
nonjumpers 36 inches deep
C. Radius of 8 feet measured to the center; line width of exactly 2 inches
D. Radius of 6 feet; no line required if contrasting floor color is used
CORRECT ANSWER B — Radius of 6 feet measured to the outside edge; minimum 1/4 inch line, maximum 2 inches wide;
spaces for nonjumpers 36 inches deep
RATIONALE Rule 1-3-1: The center restraining circle has a radius of 6 feet measured to the OUTSIDE of the edge. The line
width is minimum 1/4 inch single line, maximum 2 inches wide. Contrasting colored-floor areas may be used
instead of a line. Spaces for nonjumpers around the circle are 36 inches deep. The division line (1-3-2) is 2
inches wide and divides the court into two equal parts. If the court is less than 74 feet long, two division lines
are used, each parallel to and 40 feet from the farther end line.
4. Per Rule 1-4-1, what is the radius of the three-point line semicircle?
A. 19 feet 9 inches from the point directly below the center of the basket to the outside edge of the line
B. 20 feet 9 inches — NCAA standard
C. 23 feet 9 inches — NBA standard
D. 18 feet — middle school standard
CORRECT ANSWER A — 19 feet 9 inches from the point directly below the center of the basket to the outside edge of the
line
RATIONALE Rule 1-4-1 specifies the three-point line is a 2-inch wide semicircle with a radius of 19 feet 9 inches from the
point in the middle of the free-throw lane directly below the center of the basket to the OUTSIDE edge of the
line. The semicircle extends with a 2-inch line perpendicular to the end line, 63 inches from the inside edge of
the end line. Per Rule 1-4-2, the three-point line shall be the same color as the free-throw lane boundary lines
and the free-throw circle.
1 ELUR • SHFN
✦ NF ✦
HS
School Associations
Officials Education · NFHS Basketball Rule 1
EST. 1920
T H E N AT I O N A L L E A D E R F O R H I G H S C H O O L AT H L E T I C S & A C T I V I T I E S
NFHS Basketball — Rule 1: Court & Equipment
P L AY I N G CO U RT D I M E N S I O N S , B A C K B O A R D S , B A S K E TS , B A L L S P E C I F I C AT I O N S & B E N C H
LO C AT I O N S
ORGANIZATION National Federation of State High School RULE SECTION Rule 1 — Court and Equipment
Associations (NFHS)
ACADEMIC YEAR TOTAL QUESTIONS 25 Questions
SUBJECT AREA Court Markings, Backboard Specs, Basket FORMAT Multiple Choice — Select the Single Best
Ring Standards, Ball Requirements Answer
RULE 1 EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question based on NFHS Basketball Rule 1 (Court and Equipment).
▸ Content covers playing court dimensions (1-1), sidelines/end lines (1-2), center circle/division line (1-3), three-point line (1-4),
free-throw lane (1-5), backboards (1-7/1-8/1-9), baskets (1-10/1-11), ball specifications (1-12), and bench/coaching box locations
(1-13).
▸ Pay careful attention to precise measurements: ideal court 84x50 ft, three-point radius 19'9", free-throw line 15 ft from
backboard face, ring at 10 ft, coaching box 28 ft.
SECTION I — COURT DIMENSIONS, MARKINGS & EQUIPMENT Questions 1 –
SPECIFICATIONS 25
1. Per Rule 1-1, what are the ideal playing court dimensions for NFHS basketball?
A. 94 feet by 50 feet — the maximum allowed dimensions
B. 84 feet by 50 feet — the ideal measurements
C. 100 feet by 50 feet — NBA standard
D. 74 feet by 42 feet — minimum for high school play
CORRECT ANSWER B — 84 feet by 50 feet — the ideal measurements
RATIONALE Rule 1-1 states the court should be no greater than 94 ft by 50 ft, but the IDEAL measurements are 84 ft by 50
ft. The court must be clear of obstructions. This is a key distinction — 94x50 is the maximum; 84x50 is the
recommended ideal for high school play. The NBA court is 94 feet; NFHS prefers 84 feet. The division line
divides the court into two equal parts (1-3-2).
, 2. Per Rule 1-2-1, how much unobstructed space is required outside the boundaries of the court?
A. At least 3 feet, with 10 feet preferred
B. At least 6 feet at all points
C. No requirement — walls may be adjacent to the end lines
D. At least 15 feet on the sidelines only
CORRECT ANSWER A — At least 3 feet, with 10 feet preferred
RATIONALE Rule 1-2-1 requires at least 3 feet of unobstructed space outside the boundaries, with 10 feet preferred. If
there is less than 3 feet on an unofficial court, Rule 1-2-2 requires a narrow broken line marked on the court
parallel with and 3 feet inside that boundary. This safety margin is critical for player protection.
3. What are the specifications for the center restraining circle per Rule 1-3-1?
A. Radius of 12 feet measured to the inside edge; line width of 1 inch
B. Radius of 6 feet measured to the outside edge; minimum 1/4 inch line, maximum 2 inches wide; spaces for
nonjumpers 36 inches deep
C. Radius of 8 feet measured to the center; line width of exactly 2 inches
D. Radius of 6 feet; no line required if contrasting floor color is used
CORRECT ANSWER B — Radius of 6 feet measured to the outside edge; minimum 1/4 inch line, maximum 2 inches wide;
spaces for nonjumpers 36 inches deep
RATIONALE Rule 1-3-1: The center restraining circle has a radius of 6 feet measured to the OUTSIDE of the edge. The line
width is minimum 1/4 inch single line, maximum 2 inches wide. Contrasting colored-floor areas may be used
instead of a line. Spaces for nonjumpers around the circle are 36 inches deep. The division line (1-3-2) is 2
inches wide and divides the court into two equal parts. If the court is less than 74 feet long, two division lines
are used, each parallel to and 40 feet from the farther end line.
4. Per Rule 1-4-1, what is the radius of the three-point line semicircle?
A. 19 feet 9 inches from the point directly below the center of the basket to the outside edge of the line
B. 20 feet 9 inches — NCAA standard
C. 23 feet 9 inches — NBA standard
D. 18 feet — middle school standard
CORRECT ANSWER A — 19 feet 9 inches from the point directly below the center of the basket to the outside edge of the
line
RATIONALE Rule 1-4-1 specifies the three-point line is a 2-inch wide semicircle with a radius of 19 feet 9 inches from the
point in the middle of the free-throw lane directly below the center of the basket to the OUTSIDE edge of the
line. The semicircle extends with a 2-inch line perpendicular to the end line, 63 inches from the inside edge of
the end line. Per Rule 1-4-2, the three-point line shall be the same color as the free-throw lane boundary lines
and the free-throw circle.
