For 2026 planning, a professionally built commercial- or charter-grade boat in Lombok typically falls in the range of about USD 4,500–9,000 per metre for simpler open boats and USD 10,000–25,000+ per metre for fully fitted liveaboard or passenger vessels, depending on length, material, machinery, systems, interior specification and regulatory scope under Indonesian flag.
Per‑metre thinking: useful, but only as a planning tool
Per‑metre figures are a convenient way to compare early concepts: a 12 m dive dayboat versus a 24 m liveaboard, or a 10 m fishing workboat versus a 15 m passenger shuttle. The number gives a planning envelope while you refine the specification and route the vessel through class, flag and operational approval.
However, costs do not scale linearly. Short boats suffer from “minimum viable system” costs: engines, navigation, fire protection and certificates that you cannot shrink. Long, complex vessels add cost for hotel systems, electrical distribution and more complex steel or timber structures. The per‑metre number is most realistic in the 12–30 m range.
Indicative 2026 boat building cost bands in Lombok
The table below gives broad 2026 planning ranges for typical new-builds in Lombok, assuming commercial duty under Indonesian flag. These are yard-level construction and integration costs only, excluding land, long-term finance and owner’s separate items such as tenders and high-end loose furniture.
| Boat type (typical use) | Length overall (m) | Indicative cost band (USD) | Indicative cost per metre (USD/m) |
|---|---|---|---|
| Open workboat / basic fishing | 8–12 | 60,000–160,000 | 4,500–9,000 |
| GRP or aluminium fast passenger dayboat | 12–18 | 220,000–650,000 | 12,000–20,000 |
| Timber or steel inter-island cargo–passenger | 18–26 | 420,000–1,000,000 | 14,000–22,000 |
| Timber, GRP or steel liveaboard dive / charter | 22–35 | 650,000–2,000,000+ | 18,000–25,000+ |
| Simple inland / harbour passenger shuttle | 10–16 | 130,000–380,000 | 9,000–16,000 |
These bands assume a professional yard environment in Lombok, Indonesian flag, and systems sized for local routes such as Bali–Gili, Lombok–Flores or coastal NTB services.
Hull and structure: where the build really starts
Hull material and structural method set the backbone of your budget. Timber, GRP and aluminium dominate in Lombok. Each drives different labour, material and survey patterns. A 20 m vessel might see 20–30% of the contract value tied up in hull and structure before decks, outfit and paint are considered.
Material choice and cost behaviour
Timber hulls (ulin, bengkirai and other local hardwoods) can be structurally efficient for rounded displacement forms and liveaboards. Aluminium becomes attractive for fast passenger hulls where weight matters. GRP suits series builds and smaller passenger or workboats. The right choice depends on route, speed, payload and maintenance philosophy; see the comparison in this material overview.
Scantlings, frames and labour intensity
Indonesian-flag vessels must meet BKI or recognised-rule scantlings when seeking higher passenger capacities or international voyage approvals. That means heavier frames, deeper floors and more complex connections than informal local boats. Labour hours for fairing, lamination or welding increase accordingly and are a significant driver of hull cost beyond the raw timber, resin or plate price.
Machinery: engines, propulsion and auxiliaries
Below about 12 m, a single inboard or a pair of outboards can cover most coastal roles. Once you move into 15–30 m commercial craft, the machinery budget grows rapidly and may account for 25–40% of the entire build, particularly for fast passenger vessels.
Main propulsion
Key cost levers for main propulsion include engine brand family, rating, gearbox choice, shafting or stern drive arrangement, and propeller design. High-speed planing ferries on Bali–Gili routes demand higher installed kilowatts per tonne, pushing up engine and fuel-system costs. Displacement liveaboards can often use slower-revving engines with lower peak power but stronger torque and longer service intervals.
Auxiliaries and fuel systems
Gensets, alternators, fuel transfer pumps, filters and day tanks add complexity. A simple dayboat may run house loads from alternators alone, while a 30 m liveaboard might carry two or three diesel generators with synchronising switchboards. Tankage layout must respect stability and trim while providing range for routes such as Lombok–Raja Ampat or Lombok–Alor, which influences structural and piping work.
Systems, joinery and paint: where specifications diverge
Two hulls of the same length can differ dramatically in cost once you add systems, interiors and coatings. The decisions made here often double or triple the per‑metre figure compared with a bare utility craft.
Electrical, plumbing and safety systems
Electrical systems cover AC/DC distribution, batteries, chargers, inverters, lighting, navigation electronics, pumps and alarms. Plumbing includes fresh water, grey and black water management, bilge systems and, on higher-spec vessels, watermakers. Fire systems range from portable extinguishers to fixed engine-room installations and fire detection loops required by Kemenhub for higher passenger capacities.
Interior joinery and accommodation
Simple laminated benches and painted plywood are adequate for dayboats and workboats. Liveaboards need cabins, ensuites, crew spaces, galley and social areas. Materials (solid timber versus veneer versus laminates), hardware selection and the level of custom carpentry push labour hours significantly. Air-conditioning adds further cost: compressors, air handlers, ducting and additional electrical capacity.
Coatings and exterior finish
Coating systems in Lombok must handle tropical UV, warm seawater and monsoon rain. Timber hulls may combine epoxy sheathing and high-build primers with polyurethane topcoats above the waterline and antifouling below. Aluminium and steel require more extensive blasting and priming schedules. Fairing level is a cost decision: workboat fairness is far quicker to achieve than yacht-style finishes.
Regulatory, class and documentation costs
Beyond pure construction, a Lombok build for commercial service must navigate Indonesian regulatory requirements. These influence design, layout and equipment lists and therefore cost.
Flag, survey and passenger approval
For Indonesian flag, Kemenhub and the local Syahbandar will expect compliance on stability, lifesaving appliances, firefighting equipment, navigation lights, radio and AIS on appropriate routes. BKI or another recognised organisation may be involved where class-level surveys are required. Higher authorised passenger counts drive additional structural fire protection, exits and escape routes.
Certificates and port documentation
Costs to consider include naval architect services for lines, scantling calculations and stability analysis, BKI plan reviews where applicable, inclining tests, and the production of drawings for Surat Ukur, Gross Akte and Pas Besar. Government fees for these processes are normally in IDR, and are separate from yard construction costs.
Why per‑metre costs break down at the extremes
At small sizes, the per‑metre figure overstates cost for simple open boats and understates it for well‑specified, small passenger craft. At large sizes, hotel systems and redundancy add steps that are not present in mid‑range commercial vessels. Understanding where your project sits on this curve is crucial when reading headline numbers for boat building cost Lombok planners often discuss.
Under 10 m: minimum systems dominate
Whether your hull is 7 m or 9.5 m, you still need steering, fuel, basic wiring, navigation lights and safety gear. The fixed cost makes the shorter boat appear expensive per metre. This normalises as length grows and the fixed systems cost is spread over a longer hull.
Over 30 m: complexity and logistics increase
Above roughly 30 m, you encounter more stringent subdivision, escape and structural-fire-protection expectations, heavier electrical distribution, more complex HVAC and sometimes additional class notations. On the practical side, bigger hulls require different launching and towing strategies around Lombok’s ports such as Teluk Nara, Bangsal and Lembar, raising logistics budgets.
Planning a Lombok build: how to structure your budget
A useful first step is to allocate a preliminary budget by main categories, then refine with drawings and a technical specification. Owners can start with a pro‑forma cost model for hull structure, machinery, systems, interiors, paint, regulatory and contingency, then adjust with a yard once the operational profile is clear.
| Cost category | Typical share of total build (%) | Notes |
|---|---|---|
| Hull, deck and structure | 20–30 | Material, framing, bulkheads, decks, watertight doors |
| Machinery and propulsion | 25–40 | Main engines, gearboxes, shafts/props or jets, gensets |
| Systems (electrical, plumbing, HVAC) | 15–25 | Wiring, switchboards, pumps, tankage, AC units |
| Interior and exterior outfit | 10–20 | Cabins, galley, joinery, deck fittings, railings |
| Paint and coatings | 5–10 | Fairing, primers, antifouling, topsides and deck paints |
| Regulatory, design, survey | 5–10 | Naval architecture, stability, class/flag interface |
| Contingency | 5–10 | Material changes, scope creep, exchange-rate movements |
From there, a detailed itemisation and quotation process can be run; an overview of how this works is outlined on the pricing and quotation page.
Contingency, escalation and 2026 timing
For builds starting in 2026, it is prudent to allow contingency for exchange-rate movement, fuel-linked transport surcharges on imported components and steel or aluminium price movement. In a typical contract strategy, owners keep a 5–10% contingency reserve beyond the contracted value, adjusting as the design locks in key items such as engines and major systems.
Lead times for engines, electronics and specialised fittings can flex with global supply conditions. This affects both calendar schedule and carrying costs if you are financing the build, so cost and timeline modelling should be considered together, not separately.
Material implications on long-term ownership cost
Initial build cost is only part of the equation. Choices aimed at reducing up-front cost can increase haul-out frequency, repaint cycles or fuel burn. A more robust structure or coating system can reduce lifetime maintenance in Lombok’s warm, high-UV environment.
Material selection is central to this trade-off. A deeper dive into timber, GRP and aluminium, and their respective construction and maintenance behaviours in the region, is available in the dedicated hull materials guide.
Frequently asked questions
How much should I budget per metre for a commercial boat built in Lombok?
For a commercial- or charter-grade vessel, most owners planning a 2026 start in Lombok work with an initial range of about USD 10,000–25,000 per metre for fully equipped passenger or liveaboard vessels, and roughly USD 4,500–9,000 per metre for simpler workboats and open craft. The final figure depends heavily on material, speed, passenger count, interior fit-out and machinery selection.
What are the biggest drivers of boat building cost in Lombok?
The largest cost drivers are hull material and complexity, engine power and brand, electrical and plumbing systems, level of interior joinery, coating system, and regulatory scope. A high-speed aluminium passenger vessel with air-conditioned accommodation and higher Kemenhub passenger approval demands more power, systems and safety equipment than a low-speed timber cargo vessel, even at similar length.
How does Indonesian regulation affect my build budget?
Regulation influences both design and equipment lists. Higher passenger numbers trigger additional lifesaving appliances, fire detection and structural measures. Seeking BKI-classed construction or more demanding route approvals requires more engineering time and survey activity. Documentation such as stability books, drawings for Surat Ukur and Gross Akte, and formal inclining tests also carry professional and administrative costs.
Is it more economical to build in timber, GRP or aluminium in Lombok?
Each material has different cost behaviour. Timber can be attractive for displacement liveaboards and cargo–passenger vessels, GRP for smaller series-built workboats and passenger craft, and aluminium for fast ferries where weight is critical. The most economical choice depends on route, desired speed, payload, maintenance preferences and whether you prioritise lower initial outlay or reduced lifetime upkeep.
How early should I lock in engines and key systems for a 2026 build?
Engines, major generators and core navigation electronics are best locked in as soon as the principal particulars and weight estimates are stable, typically early in the basic-design phase. Doing this early helps secure production slots, stabilise the machinery budget against currency and price movements, and allows the yard to design foundations, tankage and electrical systems around confirmed equipment.