Gong, 2024

Surf Imperatrice EPS 2024

1626mm long · 5'4"

533mm wide

65mm thick

33litres

Open in Studio See it on gong-galaxy.com

Sizes & Numbers

Listed by the brand, read off a photo, or worked out: where every number comes from

In one line

Its width sits further forward. A swallow tail, a medium nose and gently curved rails.

derived · against the 109 other surf boards in the atlas, read off the outlines.

As listed by Gong

Gong Surf Imperatrice EPS 2024: every size as listed by Gong
size	length	width	thickness	weight
30 L	157.5cm · 1575 mm	508 mm	62 mm	–
33 L	162.6cm · 1626 mm	533 mm	65 mm · medium confidence	–
40 L	167.6cm · 1676 mm	546 mm	70 mm	–
45 L	172.7cm · 1727 mm	584 mm	70 mm · estimated	–

Every size side by side, tails on one line, one scale

Next to your board?

Lay the Gong Surf Imperatrice EPS 33 L over up to four others, at one scale.

Compare with…

Generations

After it · 2026

The 2026 162.6 × 53.3 cm is the same length and width as the 2024 33 L; its wide point moved 11 mm toward the tail. Open the 2026

listed length and width · wide point derived

2024 33 L 2026 162.6 × 53.3 cm

The Gong Surf Imperatrice EPS over time

Shape & Rocker

From above, then from the side, true scale · the chosen size solid, the others dashed

Read off the 30 L outline · derived

58 %wide point, 919 mm from the tail

3.10length over width

411mm wide 12″ from the tail

6,498cm² of planform

Read off the 33 L outline · derived

58 %wide point, 949 mm from the tail

3.06length over width

427mm wide 12″ from the tail

7,019cm² of planform

Read off the 40 L outline · derived

58 %wide point, 978 mm from the tail

3.07length over width

435mm wide 12″ from the tail

7,434cm² of planform

Read off the 45 L outline · derived

58 %wide point, 1008 mm from the tail

2.96length over width

462mm wide 12″ from the tail

8,194cm² of planform

Rocker of the 30 L · scaled from the 33 L measured

43 mmtail rocker, at the tip

15 mm12″ from the tail

22 mm12″ from the nose

81 mmnose rocker, at the tip

400 mmflat to within 3 mm, from 36 % to 62 % of the length

47 %of the length to the lowest point, from the tail

62 mmat its thickest, 58 % from the tail

13 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 33 L · measured

45 mmtail rocker, at the tip

16 mm12″ from the tail

24 mm12″ from the nose

84 mmnose rocker, at the tip

406 mmflat to within 3 mm, from 36 % to 61 % of the length

47 %of the length to the lowest point, from the tail

65 mmat its thickest, 58 % from the tail

13 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 40 L · scaled from the 33 L measured

46 mmtail rocker, at the tip

17 mm12″ from the tail

25 mm12″ from the nose

86 mmnose rocker, at the tip

413 mmflat to within 3 mm, from 37 % to 61 % of the length

47 %of the length to the lowest point, from the tail

70 mmat its thickest, 58 % from the tail

13 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 45 L · scaled from the 33 L measured

48 mmtail rocker, at the tip

19 mm12″ from the tail

27 mm12″ from the nose

89 mmnose rocker, at the tip

419 mmflat to within 3 mm, from 37 % to 61 % of the length

47 %of the length to the lowest point, from the tail

70 mmat its thickest, 58 % from the tail

14 mmlonger along the bottom curve than flat

Lay this rocker over other boards

True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · Measured on Gong's photo of the 33 L. Tail end set by Gong's photo convention, not checked by a person.