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White Duo twin pin against a concrete wallDuo bottom with twin wooden finsDuo rail profile against the wallDuo tail with twin wooden keel finsDuo rail and tail in profileTwin wooden fins on the Duo, close upDuo outline, deck and bottom

The outline · shaped around you

DUO, Twin pin, twin fin surfboard

The Duo is a carefully crafted evolution of the classic fish. Its refined tail outline gives you an easier transition onto the rail and more control when the waves have more power.

It really comes alive in small surf, thanks to extra thickness through the chest and a flatter entry rocker. An everyday board for beach breaks, reefs and points.

Waves
2ft to 6ft (face)
Conditions
All conditions
Level
Beginner to Advanced
Sizing
Set with Joe at your consultation

Starting from $1,200 AUD

ContactGet directions

0422 435 689 · Every board is ordered directly with Joe

  • Free consultation
  • Ready in 4 to 6 weeks
  • 5.0 from 53 Google reviews
Duo with timber keel fins and a yellow-railed board on the concrete

Some of the Duos we’ve made over the years

  • A dark green Duo with twin copper pinlines standing against a grey roller door
  • Two dark green Duos with copper pinlines, one standing and one lying on the concrete
  • An olive green Duo leaning on the Cross Design van
  • A yellow Duo with a white resin swirl against a grey roller door
  • A surfer sitting beside an olive Duo with a black brushstroke spray
  • A white Duo with twin blue pinlines against a grey roller door
  • A white Duo standing between gum trees on the grass
  • A surfer waxing a white Duo under the trees, black and white
  • A man in a cap standing beside a sky blue Duo at the roller door

WHO IT’S FOR AND HOW IT RIDES

Sam's white Duo twin lying on concrete

Who it’s for

Beginner to advanced surfers after one board for most days: beach breaks, reefs or points, from small summer surf up to about 6ft.

Sam's 6'2" Duo twin.

How it rides

Quick and easy in small waves from the extra thickness under your chest and the flatter entry rocker, then the refined pin tail holds on the rail when it gets more powerful.

Wave size
2ft to 6ft (face)
Ability
Beginner to Advanced

Same scales on every Cross Design model, so you can compare them side by side.

The outline

Shaped to order. Posted so far: 5'8" to 6'8". Every board is shaped to your own dimensions at the free consultation.

SIZES AND VOLUMES

Sizing guide

This board can be ridden as a shortboard or a mid length, depending on your level of surfing.

  • Joe sizes every Duo around your height, weight, ability and the waves you surf.
  • The Duo can be shaped from 5'6" to 8'0".

Real boards Joe has built

  • Zac Martens, team free surfer5'8" x 20" x 2 1/2"
  • Duo twin, custom6'2"
  • One-off with a diamond tail6'8"

Every board is shaped to you at the free consultation.

More Duo boards in the surfboard gallery, or follow the builds on Instagram.

FROM THE RIDERS

  • Zac Martens on the beach holding his Duo and a Cross Design tote bag
    Zac Martens holding his Duo on the beach, black and white

    Zac Martens

    Team free surfer

    Rides his Duo at 5'8" x 20" x 2 1/2".

    “Zac Martens | Our newest free surfer to join the cross-team. We surf because we love it. Good people, always good times.”

    Joe, Instagram, Jan 2025
Yellow tinted swallow tail beside a white board on speckled concrete
Joe in the shaping bay. Film by @tiggs_shot_that.

HOW JOE TAILORS IT

Every board starts with a free consultation about how you surf: your ability, height, weight, fitness and the waves you ride. Joe then shapes, glasses and finishes your Duo by hand in the factory, so you deal with the person doing the work from the first chat to the finished board.

Read more

He works with blanks and materials from South Coast Foam, Burford Blanks and Shapers Manufacturers Co, and every board leaves with grub screws and a leash rope.

  1. Choose your outline

    Start from the Duo and talk it through at your free consultation.

  2. Make it yours

    Colour, inlays, finish and construction, chosen with Joe.

  3. Joe shapes it around you

    Shaped, glassed and finished by hand. Ready in 4 to 6 weeks.

An olive Duo with a black brushstroke spray across the deck, standing against a white wall

Colour it your way

Resin tints, swirls, custom sprays and pin lines are mixed and laid by hand in Joe's Currumbin Waters factory. Don't see your shade? He'll mix it for you.

Resin swirls and custom sprays from $200

Yellow sunflower petals pressed into a ring under the glass, set behind the Cross Design logo between yellow pinlines

Set under the glass

Pressed flowers, shells, feathers or your own photos, set into the board beneath the fibreglass so they become part of it.

Inlays from $200

5.0 53 Google reviews

What riders say

★★★★★
Great place, Joe is so friendly and helpful, and his custom boards are just totally beautiful! Highly recommend.
Rachel CannonGoogle review,
★★★★★
Had my surfboard shaped here by Joe. Connection at first sight. Great human besides being an excellent shaper. He understood straight away what I needed.
Now every time I take the board out of the bag I smile. Been getting heaps of compliments from other surfers too whenever they see it.
Highly recommend.
Marco ZauliGoogle review,
★★★★★
Joe from Cross Design surfboards has done a fantastic job on many boards for me. Old restoration work through to new boards, all super professional and I'm a very happy customer. I would highly recommend!
NigelGoogle review,

DUO FAQ

Keep reading: fish, mid-length or longboard?, how to size a custom surfboard, or more answers in the FAQ.

What size Duo should I order?

Joe sizes every Duo around your height, weight, ability and the waves you surf. The Duo can be shaped from 5'6" to 8'0". Joe settles the exact length, width, thickness and volume with you at the free consultation. How to size a custom surfboard.

What waves does the Duo suit?

All conditions from about 2ft to 6ft (face). It excels in small surf thanks to the extra thickness through the chest and flatter entry rocker, and the refined tail gives you control when the waves get more powerful.

How long does a custom Duo take, and what comes with it?

Boards are ready 4 to 6 weeks from purchase. Every board comes with grub screws and a leash rope.

Can I have it in EPS or Carbon Fiber?

Yes. Boards are built in PU or EPS, and Carbon Fiber is available on the whole range. Joe will talk through which suits how you surf. Read EPS or PU.

Do I need to come into the factory?

No. Call or text Joe on 0422 435 689, or drop into the factory at 2/14 Nuban St, Currumbin Waters, Monday to Friday 9am to 4:30pm and Saturday 9am to 12pm. You can contact Joe 24/7, 7 days a week.

Is a twin fin faster than a thruster?

In small, soft waves a twin usually feels faster, because two fins make less drag than three, so it picks up speed quickly and feels loose. A thruster's centre fin adds hold and control when the waves get steep and powerful. The Duo's refined pin tail is there to hold on the rail when the waves have more power.

Are twin fins harder to surf?

Not in the waves they are made for. A twin is fast and loose in small to medium surf; the trade-off is less hold at full rail in steep, powerful waves, where a thruster or a twin with a tail outline designed for hold is easier to trust. The Duo has that kind of tail, and suits beginner to advanced surfers.

Choose your outline

Start your Duo

Every custom board is ordered directly with Joe. Call or text his mobile to book your free consultation.

0422 435 689

ContactGet directions

Tell Joe your height, weight, how you surf and that you are after a Duo.