What Tender Build and Delivery Covers
A superyacht tender build project spans more ground than most owners expect when they first raise the subject. At its narrowest, it is a conversation about a hull, an engine, and a delivery date. In practice, it covers structural engineering, classification compliance, garage interface design, davit and cradle specification, propulsion selection, finish specification, sea-trial sign-off, and the logistics of moving a vessel from the yard to the mothership - sometimes across multiple flag states.
The reason this matters for owners and captains is straightforward: a tender that arrives at the wrong beam, with lifting points that don't align with the davit geometry, or with a CE category that restricts the crew from running guests offshore, is not a finished asset. It is a problem that lands in the captain's lap at the start of a programme. Project managers working on new yacht builds know this; those commissioning a replacement tender mid-life sometimes find out the hard way.
The three variables that sit behind almost every problem brief are garage envelope, davit system compatibility, and classification. Get those three right in the first week, and the rest of the build process follows a predictable path. Get any one of them wrong, and you are renegotiating with the yard at a point where changes cost real money and time.
Why Classification Matters Early
CE certification for a tender is not a box to tick at the end of the build. The classification category - A (ocean), B (offshore), C (inshore), or D (sheltered waters) - determines freeboard, buoyancy provision, maximum engine weight, and in some configurations the structural laminate schedule. If your programme takes the mothership to exposed Atlantic anchorages and the tender is certified only to Category C, your operations team has a compliance problem every time the captain needs to run guests to a beach in a moderate swell. That decision is made at the drawing stage, and changing it post-build is expensive.
The Key Decisions in a Superyacht Tender Build
Every tender build brief eventually resolves into a set of specific trade-offs. The ones that recur most consistently across the builds we have been involved with are set out below.
Hull material. Fibreglass remains the default for production and semi-custom tenders because it is cost-effective, well understood by most yards, and easy to repair anywhere in the world. Vacuum-infused carbon-fibre composite saves meaningful weight where the davit system is working at or near its rated load, or where the yacht's garage imposes a strict weight limit. Aluminium sits in a middle position: heavier than carbon but more repairable in remote locations, and structurally suited to working tenders that will take hard use. The right answer depends on the davit system's rated capacity, the garage envelope, and how the vessel will be used.
Propulsion. Outboard, sterndrive, or shaft-drive inboard - each carries a different maintenance model, a different performance ceiling, and a different relationship with the garage geometry. Triple outboard configurations deliver serious top-end speed and straightforward engine replacement anywhere with a Mercury or Yamaha dealer. Inboard shaft drives suit purpose-built chase vessels where range and sea-keeping matter more than peak knots. Waterjet propulsion is increasingly common in tenders where shallow-water access and propeller protection are both priorities.
Garage fit. The tender does not exist in isolation. It lives in a garage that was designed, in many cases, before the tender brief was written. Beam, LOA, height, and weight envelope are fixed by the mothership, and the tender must be engineered to those constraints. Where the garage was designed alongside the tender, the result is almost always cleaner. Where the tender is a replacement for an existing vessel, detailed survey of the garage - including davit pick-up points, cradle geometry, and ventilation provision - is a prerequisite before a yard brief is issued.
Davit and launch systems. Tender davit systems and launch and recovery equipment represent one of the more technically involved parts of the brief. The davit must be rated for the tender's loaded weight, the lifting points on the tender hull must be engineered and certified, and the interface between the two must allow for the sea states the yacht will operate in. A tender that cannot be safely launched and recovered in the conditions the programme demands is not fit for purpose regardless of how well it performs in calm water.
Where Most Briefs Land
The majority of semi-custom tender builds we handle fall into one of three categories. The first is a limousine tender of 7.0m to 10.0m LOA, fibreglass, sterndrive or twin outboard, CE Category C, replacing a worn production vessel in a garage that already exists. The second is a larger chase-capable tender of 11.0m to 15.0m, composite or aluminium construction, higher classification category, built to a specific programme that has outgrown the garage-optimised approach. The third is a purpose-built support or crew tender where utility and durability outrank speed and finish quality.
Lead times vary significantly. A production tender from a volume yard can be delivered in twelve to eighteen weeks from order. A semi-custom build with a specific garage envelope, classified lifting points, and a bespoke finish schedule typically runs twenty-four to forty weeks depending on the yard's order book. A fully custom composite build at a specialist yard, with naval architecture, classification society oversight, and full sign-off, can run to twelve months or beyond. Planning the tender build as a parallel workstream to the yacht's own refit or build schedule is not optional - it is the only way to ensure both assets are ready at the same time.
Key Considerations for the Build Brief
A well-formed build brief reduces renegotiation and keeps the yard on programme. The elements that matter most are:
- Confirmed garage envelope (LOA, beam, height, weight limit) with dimensional drawings from the mothership's designer if available
- Davit system specification, including rated capacity, pick-up geometry, and any deck-load constraints
- CE classification target and intended operating area
- Guest capacity requirement and intended use (limousine transfer, water sports platform, chase, crew support)
- Propulsion preference and any constraints imposed by garage ventilation or refuelling logistics
- Finish specification and any livery or upholstery requirements tied to the mothership's interior
- Delivery date and commissioning location
Any brief that is missing two or more of these items will generate queries from the yard that delay the drawing programme. It is faster to resolve them before the brief goes out than to answer them in round-trips over four weeks.
Build Quality and What to Look For
Yard selection for a superyacht tender build is not purely a price exercise. The questions that differentiate a competent builder from a capable one include: Does the yard use vacuum infusion or hand lay-up for structural laminates? Are lifting points engineered and signed off by an independent naval architect, or are they built to an in-house standard? What is the warranty position on the hull structure, and who backs it if the yard changes ownership? What is the yard's track record on delivery dates against contracted schedule?
We'd put the better composite builders in the Netherlands, the UK, New Zealand, and selected Italian yards alongside each other on build quality. Price differences between them are real but narrower than the gap between any of those yards and a volume production facility. For a tender that will be launched and recovered daily in demanding conditions, the engineering margin built into the better yards is not a luxury.
Where to Start
If you are at the beginning of a tender build project, the most useful first step is to confirm the garage envelope and the davit specification before you approach any yard. Those two data points determine which builders can realistically tender for the work, and they prevent the most common source of post-order renegotiation.
For owners and captains working through the broader question of what type of tender is right for a given programme - whether the brief calls for a limousine tender, a chase vessel, a dayboat, or a combination - the Superyacht Tenders hub covers the full range of vessel types and their respective use cases.
If the davit and launch system is the constraint driving the brief, we can work with the yacht's technical team to confirm what the system will handle before a yard brief is issued. That step alone has prevented specification errors on several builds we have managed.
Talk to Us
We gather build briefs on a structured basis. The information we need at the first conversation is straightforward: garage envelope, davit system details, intended use, classification target, and delivery date. With those in hand, we can produce a shortlist of yards suited to the brief within 48 hours, with indicative lead times and price ranges.
Builds we are not suited to handle are those where the brief is not yet formed. If you are still working out what type of vessel you need, the right first step is a programme conversation, not a yard brief. We can support that process, but it runs on a different timeline.
For any tender build project where the delivery date is inside eighteen months, the conversation should start now. Yard order books at the better semi-custom builders are typically running six to nine months ahead, and classification society review adds time that cannot be compressed. The builds that arrive on schedule are the ones where the brief was confirmed early.