Extra Large Boat Trailers

GFAB Alloy Trailers built for Extra Large boats

Best suited for boats weighing over 3500kg on their trailer.

All GFAB Alloy boat trailers, are designed & built specifically to suit your boat’s make and model, taking into account any features that make your boat unique.

Our extra large boat trailers are triple axled and specifically rated to the correct weight to suit your boat and towing vehicle. Being rated over 3500kg, these trailers require a certificate of fitness to be road legal. This is an extensive process that ensures the highest level of safety and quality, a process that we can guide you through to make it as easy as possible

Backed by a 12 year chassis warranty, you can be confident that your trailer has been built to last.

GFAB’s boat trailers are all fabricated with care by our team of legends which gives GFAB trailers their strength and good looks. 

We know that reliability is essential when owning a trailer, which is why we choose to only use the New Zealand designed UniHub system on all of our marine trailers. UniHubs are a fully enclosed bearing system that means worrying about re-greasing your bearings is a thing of the past.


  • Chassis is made from C Sections of 6mm Marine Grade, High Tensile Aluminium
  • 15 Inch Black Alloys with high capacity tyres
  • 70mm tow-ball
  • Vented Patriot dacromet coated disc brakes with two-pot calipers
  • Keel rollers down the centre of the trailer to support most of the boat’s weight
  • Plastic bunks on trailers for alloy boats - Roller bunks for fibre-glass or timber boats
  • Width marker lights and wide trailer stickers on guards
  • Spare wheel and mount

Optional Upgrades

  • Boatcatch - great for independant launching and retrieving
  • Walkboards - available in full and half lengths, these non-slip boards run along the centre of the trailer so you can keep your feet dry on the boat ramp

Lead times:

Our typical lead times are between 8-10 weeks, occasionally we can facilitate urgent builds to get you back on the road after your existing trailer fails a warrant or has a major failure. Give us a call to see if we can work something out.

Finance Options

Finance may be available from MTF Fraser Street

  • Hassle-free application
  • Payments you can afford
  • Local Personal Service

Offers of finance are subject to terms, conditions, lending criteria, responsible lending inquiries and checks.

See mtf.co.nz/terms for details

mtf finance