Indiana Surf Foil 4'5

40volume, L
1,350length, mm
508width, mm
2.66slenderness

Mount twin-track Disciplines prone

The Surf Foil has 3 sizes in the current range, from 40 to 58 L. Its slenderness, 2.66, is greater than that of 31% of the 1,895 current boards that publish a length and a width.

Closest boards from other brands

Mount is shown beside each board, never matched on.

Current boards from other brands within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of the Indiana Surf Foil 4'5, closest first.
Brand	Board	Volume L	Δ volume	Length mm	Δ length	Slenderness	Mount
PPC Foiling	Prone Surf Board 4'5 x 19'8" 38L	38	-5.0%	1,346	-0.3%	—	—
Tabou	Twister Wing HD 2026 42	42	+5.0%	1,360	+0.7%	2.67 (+0.3%)	twin-track

Specifications

Every figure is Indiana's own, read from the source linked in the last row, converted to millimetres and kilograms where the brand prints inches or pounds. Slenderness is computed here, length ÷ width.
Family	Surf Foil
Model	Surf Foil
Size, as the brand prints it	4'5
Volume, L	40
Length, mm	1,350 (4'5")
Width, mm	508
Thickness, mm	89
Weight, kg	3.4
Slenderness (length ÷ width)	2.66
Slenderness band	2.5–3.0
Mount	twin-track
Strap inserts	—
Build	—
Construction	Carbon Fibreglass Sandwich
Disciplines	prone
Rider weight	40–80 kg (the brand’s stated range)
Rider level	—
Model year	—
Source	manufacturer · read 2026-10-02

Every figure above is the manufacturer's published claim, converted to comparable units.

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