Tennis court dimensions with baseline-width center marks

Use ITF/USTA outside-edge dimensions for the official court, then adjust the tape-machine center marks when a 2 in, 3 in, or 4 in baseline is specified.

Step-by-step layout mode

The large grid diagram below highlights one contractor step at a time with the active measurement labels.

Contractor striping steps

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Step 1 of 31

Prepare the court

Clean the court and complete repairs, coating, and cure time before placing final striping layout marks.

Do not begin painting until the full tennis layout is measured, checked, and approved for the intended rule set.

Tennis baseline width
Official doubles court78 ft x 36 ft

Court measurements are made to the outside of the lines.

Official singles court78 ft x 27 ft

Singles sidelines are 4 ft 6 in inside each doubles sideline.

2 in baseline center38 ft 11 in

Distance from the net to the center of the selected baseline width.

Planning pad60 ft x 120 ft

Current estimator planning pad for a full tennis footprint.

Layout points

Use these point names with the step-by-step contractor line-center method.

A
center of the court at the net
B1
first doubles sideline center at the net
B2
opposite doubles sideline center at the net
S1
first singles sideline center at the net
S2
opposite singles sideline center at the net
C1
first doubles baseline corner center
C2
other corner of the first doubles baseline
C3
opposite doubles baseline corner center
C4
opposite doubles baseline corner center
D1
first singles sideline point on the first baseline
D2
opposite singles sideline point on the first baseline
D3
first singles sideline point on the opposite baseline
D4
opposite singles sideline point on the opposite baseline
E1
first service-line corner
E2
opposite corner of the first service line
E3
opposite service-line corner
E4
opposite corner of the second service line
F1
first center service-line intersection
F2
opposite center service-line intersection
G1
first baseline center mark location
G2
opposite baseline center mark location

Line widths used in this guide

These instructions use the center of each painted line as the layout mark.

Doubles sidelines2 inCenterline marks sit 1 in inside the official outside edges.
Singles sidelines2 inKeeps the doubles alley center-to-center dimension at 4 ft 6 in.
Service lines2 inThe service-line center is 20 ft 11 in from the net.
Center service line2 inRuns from the net center to each service-line midpoint.
Center marks2 in wide by 4 in longStarts at the inside edge of the baseline and extends into the court.
Baselines2 in, 3 in, or 4 inChanging baseline width moves only the baseline centerline, not the finished outside edge.

Baseline-width adjustment

The finished outside edge stays 39 ft from the net. The line-center mark moves inward as the baseline gets wider.

2 in baseline38 ft 11 in from netCenter-to-center length 77 ft 10 in; corner diagonal 52 ft 10 13/16 in.
3 in baseline38 ft 10.5 in from netCenter-to-center length 77 ft 9 in; corner diagonal 52 ft 10 7/16 in.
4 in baseline38 ft 10 in from netCenter-to-center length 77 ft 8 in; corner diagonal 52 ft 10 1/16 in.

Selected baseline layout values

Use these values for the current 2 in baseline setting before snapping chalk lines.

Net to baseline center38 ft 11 inSame value as B1-C1 and B2-C2 when measured square from the net line.
Opposite-corner diagonal52 ft 10 13/16 inUse this with the same-side measurement to triangulate each baseline corner.
Center-to-center court length77 ft 10 inC1-C3 and C2-C4 should match this value.
Full-court diagonalabout 85 ft 8 1/4 inC1-C4 and C2-C3 should match.
Service-box diagonalabout 34 ft 1/4 inOptional square check from one singles/net point to the opposite service-line corner.
Baseline tape offset1 inTape this amount on each side of the baseline centerline.

Main line-center measurements

Use these measurements when chalk marks and tape-machine paths are the centers of the painted lines.

Doubles court width35 ft 10 in
Net center to doubles sideline17 ft 11 in
Singles court width26 ft 10 in
Net center to singles sideline13 ft 5 in
Doubles alley4 ft 6 in
Net to service-line center20 ft 11 in
Doubles net-post spacing42 ft center-to-center
2 in baseline court length77 ft 10 in
Full-court diagonal checkabout 85 ft 8 1/4 in
Service-line diagonal checkabout 34 ft 1/4 in

Finished official checks

After taping and painting, verify the official finished dimensions to the proper line edges.

Doubles width36 ft
Singles width27 ft
Court length78 ft
Net to baseline outside edge39 ft
Net to service-line outside edge21 ft
Doubles alley4 ft 6 in
Center service line2 in wide
Center mark2 in wide by 4 in long
Baseline2 in, 3 in, or 4 in
Layout note

A 2 in baseline moves the tape-machine center 0 ft 1 in inside the official outside baseline edge.

Layout note

With a 2 in baseline, the baseline center-to-center length is 77 ft 10 in.

Layout note

The center service line and center mark are 2 in wide; most other tennis lines are 1 in to 2 in wide, while baselines may be up to 4 in.

Layout note

This contractor layout guide assumes 2 in doubles sidelines, singles sidelines, service lines, center service lines, and center marks.

ITF rules and regulations download page

Source checked 2026-08-27.

Review source

Use the measurements before the quote request.

These dimensions help you plan the layout. The calculator prices the scope, the colorizer previews the surface, and the map estimator places the court, fencing, lighting, and related items on the property.