Butter Knife CSE

The Butter Knife is a Carl Schaper creation. Best known for his longboards, Carl’s Butter Knife is second to none when it comes to mini-tank designs.

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“We have had so many guys come back so stoked on riding the board they originally bought for their daughter!” ~ Carl Schaper

Bottom: Soft roll to mid-V to double concave
Rider: Beginner – pro
Wave Type: 1-6ft

Butter Knife Design

The Butter Knife with its classic outlines, perfect performance longboard rockers, and well-thought-out volumes is a winner across the board. Suitable for all abilities, surfers get to ride these as single fins in smaller conditions and discover their nose riding potential. And when it gets a bit punchier, you can just slip in the side bites and you have a perfect riding board for just about all conditions. As a thruster, a Butter Knife is balanced and predictable. Pop in a quad set up and use a bucketload of speed and increased bite to your advantage.

Butter Knife Fin setup

The Butter Knife comes with a 4+1 fin configuration allowing you to get creative in your setup. Try a quad, thruster, or even a single fin. NSP positioned the Surf 10 fin box slightly further back on purpose, making a realistic thruster setup work out as well.

All Butter Knives come with FTU fin boxes and are compatible with Futures® Fins (fins not included).

High-Performance accessories by NSP
Scroll to the bottom of the page for additional interesting shapes and suitable high-performance fins for the Butter Knife by NSP.


Size Chart

LengthWidthThicknessVolumeWeight +/- 5%
8'0"21 ³/⁴"2 ³/⁴"55 Liters4.46 Kg
8'6"22"3"64.5 Liters4.97 Kg


Additional Information

Who’s the Butter Knife for

Riders looking for a minimal with a deeper performance envelope are well-advised to check out the Butter Knife. With its classic outlines, perfect performance longboard rockers, and thought-out volumes, the Butter Knife is a shape for riders of all abilities looking for a mid-length that works and performs on smaller days.

Butter Knife Features

Shapers Union

Carl Schaper

Shaper’s Union

The Butter Knife is a Shaper’s Union creation, a collaboration between NSP and world-class shapers like Carl Schaper. Established to bring new energy and high-performance to the surf line-up, Shapers Union is NSP’s way to showcase the incredible skill and talent of some of the most accomplished shapers in the world.

Carl’s philosophy
“Keep it simple, stay neutral and make sure the boards are fast. Get the right board for the right guy for the right conditions.”

Residing on the island of Oahu, Carl Schaper operates from the legendary Sugar Mill, creating longboard shapes, guns and mini mals for surfing royalty from Hawaii and beyond. His knowledge of shaping and construction is an essential part of the Shaper’s Union DNA.

Shapers' Union Thunderbolt logo

CSE Construction

Built with custom surf epoxy lay-up with a clear UV-stable resin and satin rub finish and combined with a CNC-cut EPS core, laminated with a full 220g biaxial 4oz deck and 6oz bottom, 4oz patches around the fin boxes, a 6mm wood stringer, bottom carbon stringer, and carbon-reinforced tail, giving you a durable longboard with great flex and performance, that feels light and responsive.

Think of CSE as a lighter, more performance-oriented version of the Butter Knife, compared to its Nature Flex version.

2022 CSE Pro-9, Butter Knife, The Cheater Construction

Butter Knife Video

Butter Knife profile

CSE Butter Knife

Butter Knife Action

Butter Knife Testimonials

“This thing is mental!!!!! Wish a big comp on the sunny coast was going ahead….. this thing will blow minds!”
Paul Jonesy, Team Rider Australia

“Im 57 yrs old, 200lbs I love this board. I just surfed it yesterday in hard to catch head high waves and I got in waves early. Surfs like a short board off the tail. for me, I need at least 60 liters regardless of length. This board has 64 litres and with the extra length, it catches just about anything for me… I surf it in small waves and head high plus. It works great in all conditions…
Shredding Hippie Surf Show

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    Bag details

    Bag NameDimensionsDesigned for
    Board sock 8'0"8'0" x stretchy8'0"
    Board sock 8'6"8'6" x stretchy8'6"
    Surf Day Bag 8'6" 4mm271 x 69 cm8'0" and 8'6"
    Surf Travel Bag 8'6" 4mm271 x 69 cm8'0" and 8'6"

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