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Stretch Boards

Square One

Square One

40 years of R & D thruster

The "Square One" is the culmination of my 40 years shaping tri fins. In 1980 I saw Simon Anderson surfing Swamies on his hand shaped “thruster”. It was months before his Bells and Pipe victory and word travelled slower back then. 24 hours after seeing his design I drove back home to Northern CA and started glassing on center fins to my already completed twins. I made a batch of the first seen thrusters in Santa Cruz for the younger locals including Chris Gallagher, Mark Machado and Chris “the bear” Green.

  • Neutral-continuous rocker to accommodate to front & back foot surfers
  • Wide point centered for improved paddability
  • Designed for predictability and to carry speed
  • 3 fin Futures or FCSII
  • Available stock sizes 5’5 to 6'4
$995.00 USD
$995.00 USD
Sale Sold out

Airbrush Price Sheet

Stock Dimensions

Additional Information

Wave

Size
  • Knee
  • Double+

Break

  • Point
  • Reef
  • Beachbreak

Power

  • Weak/Mushy
  • Medium/Steep
  • Strong/Barrels

Performance

Approach

  • Vertical/Pocket
  • Power/Carving
  • Cruisy/Positional

Skill Level

  • Novice
  • Intermediate
  • Expert

Foot Orientation

  • Back Foot
  • Neutral
  • Front Foot

Shape

Foil / Rails

  • Thin
  • Medium
  • Full

Nose Shape

  • Pointed
  • Hybrid
  • Round

Tail Width

  • Narrow
  • Medium
  • Wide

Entry Rocker

  • Relaxed
  • Medium
  • Aggressive

Exit Rocker

  • Relaxed
  • Medium
  • Aggressive

Rocker Style

  • Staged
  • Parabolic
  • Continuous
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CONSTRUCTION

EPS Standard
  • 2.1pcf density Marko Foam EPS core
  • Appelcore stringer
  • EPOXY hand lamination using 6oz. + 4oz. E-glass deck with 6oz. E-glass bottom
  • No deck channels
CFT
  • 1/8” bamboo stringer
  • Epoxy lamination with 6oz. direct sized RWG E-glass deck and bottom
  • 4oz. S-glass deck layer 45º off-axis quadrilateral cloth matrix
  • Individually hand-shaped deck channels
SLT
  • Stringer-less 2.1 pcf Marko blank
  • Epoxy lamination with 4oz. direct sized RWG E-glass deck and bottom
  • 4oz. S-glass deck and bottom layer 45º off-axis quadrilateral cloth matrix
DFT
  • Stringerless 2.0 pcf. Marko blank
  • Vacuum bagged bamboo veneer inlay
  • Epoxy lamination with 4oz. direct sized RWG E-glass deck and bottom
  • 4oz. S-glass deck and bottom layer 45º off-axis quadrilateral cloth matrix
  • Individually hand-shaped deck channels
Legacy
  • Full CFT construction
  • 1/16” thick Amorim cork veneer vacuum attached to the deck and rails
  • Bamboo veneer bottom skin
  • Each LEGACY core is engineered in-house and custom shaped by William Riedel in Santa Cruz, CA

Airbrush Pricing 4/13/25

Custom Airbrush Price
Rail Color $80
Single Color $80
Halo $80
Two Color Fade $100
Single Color + Rails $160
Pour Job (2 sides) $100
Tail Dip (1 color or hand painted) $100
One Stripe $60
Pinlines $45

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