Build From Your Own Plans — CNC-Cut Steel, Aluminium & FRP

The kit-build sequence is deliberately front-loaded. First, a plan review: our engineers and the classification surveyor read the structural schedule against Bureau Veritas or RINA rules and flag anything that needs the designer’s input — before money moves. Second, material procurement with mill certificates matched to the drawings. Third, CNC plasma cutting of the full plate set, nested for minimum waste, with every part labelled to the assembly sequence. From there the build follows the same surveyed stages as any of our projects: framing, plating, welding with mapped inspection, blasting and coating, systems installation, launch and sea trials. Owners receive the same technical file — weld maps, ultrasonic records, coating certificates — as a yard-designed vessel.

Steel kit designs are the most common package we receive, and the economics explain why: designs like the Roberts PCF 40 exist precisely so that a certified fabrication yard anywhere in the world can build them faithfully from the cutting files. Our steel program at Lamongan is organized for exactly this work. Aluminium kits run through the Tanjung Benoa alloy bay, and composite one-offs are assessed case by case against our FRP program tooling logic.

The arithmetic is straightforward: proven design + certified low-overhead fabrication = a classed vessel at a build cost European and Australian yards cannot match. The design fee is already spent; what remains is fabrication labour, materials and survey — and Indonesian yard rates put more of the budget into plate, machinery and outfit instead of overhead. Owners keep design control and designer support, while the yard contributes the welding certifications, class relationships and project management that turn a file set into a launched vessel. If you have not yet fixed a material, the comparison in steel vs aluminium vs FRP is the place to start.