Firewire, 2025

Firewire FRK Swallow 2025

1676mm long · 5'6"

470mm wide

60mm thick

25.7litres

See similar boards

Open in Studio See it on firewiresurfboards.com

Sizes & Numbers

Listed by the brand, read off a photo, or worked out

In one line

Its width sits further back. A swallow tail, a pointed nose and gently curved rails.

derived · against the 146 other surf boards in the atlas, read off the outlines.

As listed by Firewire

Firewire FRK Swallow 2025: every size as listed by Firewire
size	length	width	thickness	weight	price
25.7 L	5'6" · 1676 mm	470 mm	60 mm	–	US$890
26.3 L	5'7" · 1702 mm	472 mm	60 mm	–	US$890
27.4 L	5'8" · 1727 mm	473 mm	62 mm	–	US$890
29 L	5'9" · 1753 mm	479 mm	64 mm	–	US$890
30.2 L	5'10" · 1778 mm	484 mm	65 mm	–	US$890
31.9 L	5'11" · 1803 mm	489 mm	67 mm	–	US$890
33.3 L	6' · 1829 mm	492 mm	68 mm	–	US$890
34.6 L	6'1" · 1854 mm	497 mm	68 mm	–	US$890
36.1 L	6'2" · 1880 mm	500 mm	70 mm	–	US$890
38.7 L	6'4" · 1930 mm	511 mm	71 mm	–	US$890

Prices as the Firewire store showed them on 2026-10-27, in its currency · the cheapest version first, every version on hover

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

Which FRK Swallow Size for Your Weight?

The Firewire FRK Swallow 2025 size each rider would pick, by weight and level

Your weight

kg≈ 165 lb

Your level

75 kg · getting there · look for 33.8–41.3 L

The FRK Swallow 38.7 L

3 sizes fall in your range; the 38.7 L is nearest its middle.

Other boards for you

A rule of thumb (0.45 to 0.55 L per kg you weigh), not Firewire’s chart

Every weight and level

Firewire FRK Swallow 2025: the size for a rider of 60 to 105 kg, by level
level	60 kg	75 kg	90 kg	105 kg
First sessions0.6 to 0.9 L per kg you weigh	38.7 L	too small	too small	too small
Getting there0.45 to 0.55 L per kg you weigh	30.2 L	38.7 L	38.7 L · small	too small
Confident0.38 to 0.45 L per kg you weigh	25.7 L	31.9 L	36.1 L	38.7 L · small
Expert0.33 to 0.38 L per kg you weigh	too big	26.3 L	31.9 L	36.1 L

Rules of thumb, not Firewire’s chart · “small” and “big”: the nearest size, just outside the range · How the sizes are worked out · Find your board

Next to your board?

Lay the Firewire FRK Swallow 25.7 L over up to four others, at one scale.

Compare with…

Generations

After it · 2026

The 2026 27.4 L is the same length and width as the 2025 27.4 L. Open the 2026

listed length and width

2025 27.4 L 2026 27.4 L

The Firewire FRK Swallow over time

Shape & Rocker

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

Read off the 25.7 L outline · derived

49 %wide point, 816 mm from the tail

3.51length over width

390mm wide 12″ from the tail

6,302cm² of planform

Read off the 26.3 L outline · derived

49 %wide point, 829 mm from the tail

3.61length over width

383mm wide 12″ from the tail

6,320cm² of planform

Read off the 27.4 L outline · derived

49 %wide point, 841 mm from the tail

3.65length over width

382mm wide 12″ from the tail

6,436cm² of planform

Read off the 29 L outline · derived

49 %wide point, 853 mm from the tail

3.66length over width

385mm wide 12″ from the tail

6,617cm² of planform

Read off the 30.2 L outline · derived

49 %wide point, 866 mm from the tail

3.67length over width

387mm wide 12″ from the tail

6,780cm² of planform

Read off the 31.9 L outline · derived

49 %wide point, 878 mm from the tail

3.69length over width

388mm wide 12″ from the tail

6,944cm² of planform

Read off the 33.3 L outline · derived

49 %wide point, 890 mm from the tail

3.72length over width

389mm wide 12″ from the tail

7,088cm² of planform

Read off the 34.6 L outline · derived

49 %wide point, 903 mm from the tail

3.73length over width

391mm wide 12″ from the tail

7,257cm² of planform

Read off the 36.1 L outline · derived

49 %wide point, 915 mm from the tail

3.76length over width

391mm wide 12″ from the tail

7,403cm² of planform

Read off the 38.7 L outline · derived

49 %wide point, 940 mm from the tail

3.78length over width

396mm wide 12″ from the tail

7,772cm² of planform

Rocker of the 25.7 L · measured

69 mmtail rocker, at the tip

31 mm12″ from the tail

51 mm12″ from the nose

133 mmnose rocker, at the tip

352 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

81 mmat its thickest, 51 % from the tail · on the photo; Firewire lists 60 mm

24 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 26.3 L · scaled from the 25.7 L measured

70 mmtail rocker, at the tip

32 mm12″ from the tail

52 mm12″ from the nose

135 mmnose rocker, at the tip

355 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

81 mmat its thickest, 51 % from the tail

24 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 27.4 L · scaled from the 25.7 L measured

71 mmtail rocker, at the tip

34 mm12″ from the tail

54 mm12″ from the nose

137 mmnose rocker, at the tip

358 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

83 mmat its thickest, 51 % from the tail

25 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 29 L · scaled from the 25.7 L measured

72 mmtail rocker, at the tip

35 mm12″ from the tail

56 mm12″ from the nose

139 mmnose rocker, at the tip

361 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

85 mmat its thickest, 51 % from the tail

25 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 30.2 L · scaled from the 25.7 L measured

73 mmtail rocker, at the tip

36 mm12″ from the tail

57 mm12″ from the nose

141 mmnose rocker, at the tip

364 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

87 mmat its thickest, 51 % from the tail

26 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 31.9 L · scaled from the 25.7 L measured

74 mmtail rocker, at the tip

37 mm12″ from the tail

59 mm12″ from the nose

143 mmnose rocker, at the tip

367 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

89 mmat its thickest, 51 % from the tail

26 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 33.3 L · scaled from the 25.7 L measured

75 mmtail rocker, at the tip

38 mm12″ from the tail

61 mm12″ from the nose

146 mmnose rocker, at the tip

369 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

91 mmat its thickest, 51 % from the tail

26 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 34.6 L · scaled from the 25.7 L measured

76 mmtail rocker, at the tip

39 mm12″ from the tail

62 mm12″ from the nose

148 mmnose rocker, at the tip

372 mmflat to within 3 mm, from 39 % to 60 % of the length

50 %of the length to the lowest point, from the tail

91 mmat its thickest, 51 % from the tail

27 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 36.1 L · scaled from the 25.7 L measured

77 mmtail rocker, at the tip

39 mm12″ from the tail

64 mm12″ from the nose

150 mmnose rocker, at the tip

375 mmflat to within 3 mm, from 40 % to 59 % of the length

50 %of the length to the lowest point, from the tail

94 mmat its thickest, 51 % from the tail

27 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 38.7 L · scaled from the 25.7 L measured

80 mmtail rocker, at the tip

41 mm12″ from the tail

68 mm12″ from the nose

154 mmnose rocker, at the tip

381 mmflat to within 3 mm, from 40 % to 59 % of the length

50 %of the length to the lowest point, from the tail

96 mmat its thickest, 51 % from the tail

28 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 Firewire's photo of the 25.7 L. Tail end set by Firewire's photo convention, not checked by a person.