Past Custom Builds
The builds below are past customer custom orders. Get inspired, then build your own. Fill out the custom order form on this page, or reach out and we'll get you dialed.
Cal Twin
The Cal Twin is a high-performance twin fin shortboard. A customer once brought Doc an early 1980s twin fin he'd been riding for years, called it his magic board, and asked Doc to recreate it. Doc matched the original outline and basic vee bottom design, then started evolving it with modern dimensions and current surfing in mind. What came out the other end is the Cal Twin: a high-performance twin fin that's become a staple of the Surf Prescriptions lineup.
The Cal Twin is a double winged swallow tail that rides like a modern shortboard. Doc kept the outline and the basic vee bottom that made the original work, then dialed in the rocker, foil, and dimensions for the way performance twins are surfed today. The result is a board that does everything a high-performance twin should do: paddles in early, generates speed where most twins stall, and lets you push hard through turns without washing out.
This board just feels magic under your feet. That's the only way to describe it and it's why so many of Doc's customers order one and then never want to ride anything else.
If you've ridden modern performance twins and wished they had more soul, or you've ridden retro twins and wished they had more performance, the Cal Twin is the board that bridges that gap.
Doc's Board Recommendation:
- Thruster
- Double Winged Swallow Tail
- No Channels
Best for:
- Waves from 1 to 6 ft
- Surfers who want vintage twin fin with modern performance
- Surfers looking for a high-performance twin to push hard in everyday surf
- Quivers that need a twin fin staple
Specs:
- Fin setup: Twin or Twin +1 (FCS or Futures boxes)
- Bottom: Basic vee, evolved for modern dimensions
- Outline: Based on an early 1980s magic twin template
- Drive Speed: 5/5
- Wave Height: 1–6 ft
- Maneuverability: 4/5
- Paddle Power: 4/5
- Construction: Available in PU/Polyester or EPS/Epoxy
Custom shaped to order in Huntington Beach, California. Typical build time 3–4 weeks.
Pairs well with: Tallboy Twin Fins for snappy modern response, or Triple T Keel Twins for more drive in a straight line.
PU Polyester
- The standard blank, offering a classic feel and smooth ride. Known for its flex and responsiveness in a variety of wave conditions.
- Polyester Blank
- Polyester Resin
Poly with Epoxy Resin
- Stronger than polyester resin and makes the board more durable.
- Polyester Blank
- Epoxy Resin
EPS Epoxy
- Great strength to weight ratio.
- Lighter and stronger than a polyester board in the same dimensions.
- Slightly more flotation.
Single Slot Channel
- A single slot channel is a singular, short groove starting about 10 inches from the tail and getting deeper as it exits out the end of the board.
Benefits:
- Improved Drive: The single slot channel helps direct water flow, providing the board with extra drive and speed, especially in smaller, weaker waves. A great alternative to having a center fin on twin or quad fins.
- Control: It offers enhanced control by channeling water more directly under the board, making it easier to maintain a stable line during turns.
- Versatility: This channel design is versatile, performing well in various wave conditions, from small beach breaks to bigger surf. Adds a little grip to your rip.
4 Channel
- A 4-channel design features four grooves on the bottom of the board. A slightly longer center channel. The outside channels are a little shorter starting from the back quarter of the board, starting shallow and progressively get deeper as it exits the tail.
Benefits:
- Speed and Lift: The 4 channels create lift by directing water flow more efficiently, allowing the board to plane better on the water's surface, which results in increased speed.
- Enhanced Grip: This design provides additional grip and hold during turns, making it excellent for carving and generating speed through sections of the wave.
- Responsiveness: The configuration of the channels offers more responsiveness in turns, allowing for sharper, more precise maneuvers.
- Aesthetic Appeal: High-gloss shine enhances visual appeal and makes the board stand out.
- Durability: Offers a little bit of strength and durability.
Protects the crucial area of the board under your back foot. It’s worth the price if you are hard on your boards and have a tendency to crush the tail with your back foot.
DRIVE SPEED
5/5
WAVE HEIGHT
1-6FT
MANEUVERABILITY
4/5
PADDLE POWER
4/5
