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  • Channel Islands Tri Plane Hull Single Fin

    Channel Islands Tri Plane Hull Single Fin

    Length: 6'9"
    Width: 21 1/8"
    Thickness: 2 11/16"
    Volume: 42.8L
    Fin Setup: Single Fin
    Tech: Poly
    Tail Shape: Rounded Diamond

    Channel Islands Tri Plane Hull Single Fin

    Length: 6'11"
    Width: 21 1/4"
    Thickness: 2 3/4"
    Volume: 45.2L
    Fin Setup: Single Fin
    Tech: Poly
    Tail Shape: Rounded Diamond
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    Channel Islands Tri Plane Hull Single Fin Surfboard


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    The Tri Plane Hull Single is a fun, user-friendly midlength that incorporates a fresh take on a Al Merrick’s Tri Plane Hull bottom design he refined and built during the ’70s and ’80s—a Greenough inspired planning hull that generates tremendous “lift,” which provides added speed, freedom, and ease of control. Working with surfer Devon Howard once again (see CI Mid), we set out to build a better egg-style, single-fin midlength—a genre of surfboard that can often look cool and groovy but tend to ride slow and sticky, sometimes lacking pizazz or drive through the turns. By incorporating a Tri Plane Hull bottom with a Al’s classic egg outline, and combined with our modern style rail and rocker profiles, we landed on a rather spicy midlength design that has a surprising amount of trim speed and drive through its turn in small surf—making this a reliable long-railed performer in conditions ranging from subpar to above average. The Tri Plane Hull Single comes with beautiful color lamination options that are sealed with a matte finish gloss coat and outfitted with a minimalistic logo treatment which pays homage to some of Al’s early surfboard creations. To compliment this beauty of a midlength, Devon worked on a custom built, sleek single-fin that is available in three sizes: 8”, 8.5” and 9”. The CI Single Fin template is rather upright, which helps the board pivot and turn on dime—while its slender outline and conservative rake profile provide a nice flow on down the line point breaks. Our general sizing guideline goes as follows: 8” for 6’7” & under; 8.5” for 6’8” to 7’5”; 9” 7’6 & over.

    Channel Islands Surfboards qualify for Special Surfboard Shipping Rates!

    Check out the Special Shipping Table below.

    Can I return a Surfboard?

    • The board must have NEVER have been ridden, used, waxed or damaged in any way.
    • Customer is responsible for ALL shipping/custom charges to return/exchange.
    • $50 restocking fee will be charged for all returned surfboards.
    • The board must be returned/exchanged within 10 business days of purchase.
    • We strongly recommend insuring all returned or exchanged orders.
    • We are NOT responsible for any returned board that are damaged/lost in transit.
    • Any damage sustained upon return will be deducted from the refund amount. 

    Does the Surfboard come with fins?

    • Typically not, unless stated in the Product Description that fins are included.

    What is the right Surfboard for me?

    • It depends on things like height, weight and experience level. Check out our Surfboard Volume Calculator to find the right size board for you.

    Can I Custom Order a Surfboard?

    • Yes, we do have direct lines with a lot of the board manufacturers and can submit a custom order. Please fill out our Custom Surfboard Order Form if interested.

    Size Guide

    Size Width Thickness Volume
    6'7 21 2 11/16 41.4
    6'9 21 1/8 2 11/16 42.8
    6'11 21 1/4 2 3/4 45.2
    7'1 21 3/8 2 13/16 47.6
    7'3 21 5/8 2 7/8 50.4
    7'7 21 7/8 3 55.7
    7'11 22 1/8 3 1/16 61.2


    About Channel Islands Surfboards

    Since 1969, Channel Islands Surfboards has been dedicated to performance and quality through hard work, innovation, and originality. The Surf Station is the Channel Islands East Coast Warehouse. Channel Islands started with hard-core surfing and quality in mind and these guidelines have brought us through four decades of constant change in the surf industry. Channel Islands Surfboards will shape the new millennium with innovative design and quality as their main focus.