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Booms by Southern Spars


Southern Spars has a full time team of experienced designers, dedicated to designing booms of all varieties, with integrated RigCalc software at their fingertips. The project specific design of a boom plays a vital role in the performance and usability of a yacht’s sail, spar and rigging package.

Southern Spars designs and produces a range of booms from 11-foot foiling moths up to mega yachts stretching more than 200-feet. They are all constructed in carbon from with specially shaped moulds, unlike many manufacturers, who use make do with generic moulds. This makes the booms lighter, with superior aerodynamics and sleeker looks.


parker avenue boom

Retaining many of the benefits of a Racing Box Boom when sailing, the Park Avenue has the advantage of a wide top wing platform to make flaking sails a breeze. Soft lines make this a truly classic looking boom.

Benefits of the Park Avenue;

  • Wide top wing platform
  • Performance benefits
  • Sail reefing
  • Adjustment controls
  • Enhanced sail tuning ability

racing box boom

This is Southern’s full noise race boom. It is often deep in section to provide maximum stiffness to weight efficiency and to give added downwind effective sail area.
Differing cross sectional shapes are available to suit the yacht’s performance requirements.

Possibility to add outriggers for supporting flaked sails.

Benefits of the Racing Box Boom:

  • Excellent strength to weight ratio
  • Maximised downwind effective sail area
  • Enhanced sail tuning ability

veelux boom - southern spars

Similar in application to the traditional Park Avenue Boom, the Veelux Boom offers a much deeper sail flaking cavity to almost completely hide the stowed sail. This gives a cleaner, minimalistic look when at rest.

The shape offers a contemporary look, with strong lines whilst still retaining the classic aerofoil curves along its length. The result is an ultra-clean boom package with deceptively large volume for sail storage.

Benefits of the Veelux Boom;

  • Deep sail flaking cavity
  • Clean, contemporary aesthetics
  • Classic aerofoil curves
  • Enhanced sail tuning ability

wing boom - southern spars

Our Truss Wing Boom offers a high performance alternative to the Park Avenue design. The Truss Wing Boom is, in essence, a racing box boom, with secondary bonded lightweight truss wings. It is lightweight and sports clean lines, ideal for a cruiser/racer.

Benefits of the Wing Boom;

  • Cost effective
  • Lightweight
  • Easy sail stacking

vitters - unfurled

Southern Spars´ in boom furling technology has changed the game for superyachts with furling main sails. We have a range of drive systems to suit your yacht and the desired specification of your boom, including electric and hydraulic powered furling options. Customise your boom with extras; custom paint finish, flush-mounted LED lights, mainsheet preventer, internal mainsheet.

Benefits of the Furling Boom;

  • SouthernFurl’s design allows full-length sail battens, giving your sail a better flying shape and decreasing flogging, therefore increasing the lifespan of your sail.
  • Carbon fibre construction is strong and stiff.
  • Quick and simple to retrofit.
  • Open front means minimal sail distortion which increases the tolerance of an imperfect furl.