---
title: "Hydraulic Composite Balcony for a 24 m Catamaran | YTEK Yeni Teknoloji"
description: "YTEK Yeni Teknoloji designed and built a 2 × 2 m composite fold-out balcony for a 24 m catamaran: 2.2 kW hydraulic drive, cylinders with hydraulic locks, 2-person capacity, delivered 2024."
url: https://ytek.tech/projects/catamaran-hydraulic-balcony/
language: en
alternates:
  en: https://ytek.tech/projects/catamaran-hydraulic-balcony/
  tr: https://ytek.tech/tr/projeler/katamaran-hidrolik-balkon/
publisher: YTEK Yeni Teknoloji (https://ytek.tech)
---

[Home](https://ytek.tech/) / [Projects](https://ytek.tech/projects/) / Catamaran hydraulic balcony

Case study P3 · Marine / yacht · 2024

# Hydraulic fold-out composite balcony for a 24 m catamaran

![Deployed composite balcony with teak deck and rope guard rail on the side of a 24 m catamaran](https://ytek.tech/images/projects/balcony-deployed-side.webp)

- **Vessel:** 24 m catamaran
- **System:** Fold-out hull balcony
- **Platform:** 2 × 2 m, composite
- **Capacity:** 2 people
- **Drive:** 2.2 kW hydraulic power unit
- **Actuation:** Hydraulic cylinders with hydraulic locks
- **Finish:** Teak deck, rope guard rail
- **Delivery:** 2024
- **Scope:** Design and manufacture

[Request a quotation](https://ytek.tech/contact/?product=yacht-systems)

**Summary.** YTEK Yeni Teknoloji designed and manufactured a hydraulically actuated 2 × 2 m composite fold-out balcony for a 24 m catamaran. The system was delivered in 2024 and is in service.

## Requirement

The owner required a private balcony that deploys from the hull side and closes flush with the hull line when the vessel is under way. The system had to be integrated into a confined hull section, carry two people safely over the water and remain locked in any position. On a multihull, where weight has a direct effect on performance, added mass had to be kept to a minimum.

## Engineering solution

-   **Composite platform:** a 2 × 2 m composite structure that minimises weight while providing the stiffness required for two occupants.
-   **Cylinder actuation:** two hydraulic cylinders, one on each side of the opening, rotate the balcony about its hinge line.
-   **Hydraulic load holding:** lock valves on both cylinders hold the balcony in position in the event of a pressure loss.
-   **Compact power unit:** a 2.2 kW hydraulic power unit sized to the catamaran's limited technical space and power budget.
-   **Hull integration:** frame, hinge brackets and cylinder mounts designed around the existing hull structure, so the closed balcony follows the hull line.

## Scope of work

YTEK was responsible for the design and manufacture of the balcony system.

![CAD model of the closed hull balcony with two hydraulic cylinders and upper hinge points](https://ytek.tech/images/projects/balcony-closed-cad.webp)

CAD: closed position, cylinders on both sides

![CAD model of the balcony deployed as a platform from the catamaran hull side](https://ytek.tech/images/projects/balcony-open-cad.webp)

CAD: deployed position

## System operation

In the closed position the balcony forms part of the hull side. On command, the cylinders lower it outward until it forms a level platform beside the water. The lock valves hold it in the open, closed or any intermediate position.

## Outcome

Delivered in 2024 and in service. Finished with a teak deck and a rope guard rail on stanchions, the balcony provides a two-person terrace at water level without altering the hull profile when closed.

![Top view of the open balcony over the water, teak deck with two sun loungers](https://ytek.tech/images/projects/balcony-deployed-top.webp)

## Frequently asked questions

### What balcony sizes can be supplied?

This balcony measures 2 × 2 m. Each system is engineered to the opening and structure of the specific hull.

### Which drive options are available?

This project uses a 2.2 kW hydraulic power unit with cylinder lock valves. Electro-hydraulic and fully electric drives are also available.

### Why a composite structure?

Composite construction reduces weight, which is critical on catamarans and fast yachts, while maintaining platform stiffness.

## Balcony, beach club and hull door systems

Hydraulic, electro-hydraulic or fully electric systems, engineered to the hull.

[See yacht systems](https://ytek.tech/products/yacht-systems/)