<p>The largest LEGO ship that officially floats in water is the Cargo Ship that comes in <a href="https://brickset.com/sets/7994-1/LEGO-City-Harbour" rel="noreferrer">7994-1 LEGO City Harbor</a>:</p>

<p><a href="https://i.sstatic.net/GfsoB.jpg" rel="noreferrer"><img src="https://i.sstatic.net/GfsoB.jpg" alt="7994-1 LEGO City Harbor set image"></a></p>

<p>It is the only set which contains the <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=57789c01" rel="noreferrer">74 x 18 x 7 Boat Hull</a>, which is the largest boat hull LEGO has made.</p>

CC BY-SA 3.0
2017-07-06T20:49:08.493Z
Which brings us to the question whether you can build boat hulls, i.e. water tight structures, out of non-boat parts!
Metalbeard
CC BY-SA 3.0
2017-07-06T20:55:28.660Z
@Aziraphale I tried once. Water is quite good at leaking between cracks. You could maybe connect multiple pieces that float on their own (some LEGO boat hulls are made this way).
Alexander O'Mara
CC BY-SA 3.0
2017-07-06T20:59:57.877Z
I just found a very good question about the topic here: https://bricks.stackexchange.com/q/78/6498
Metalbeard
CC BY-SA 3.0
2017-07-09T01:19:52.733Z
You can make bigger boats that float using the boat hull segments LEGO made back in the eighties. Theoretically boats can be any size using those pieces (multiple of 8 studs I believe, as that is how long each segment is)
Phil B.
CC BY-SA 3.0
2017-07-05T19:56:53.147Z
2017-07-05T19:56:53.147Z
Alexander O'Mara
<p>My kids are frantic about LEGO ships, and I was wondering which are largest ships ever made.</p>

<p>Of course, they need to be actually able to float in a pool.</p>

<size><boat>
Which are the largest LEGO ships that actually float?
Giuseppe Biondi-Zoccai
# Which are the largest LEGO ships that actually float?

(Asked by: username_0 on 2017-07-05)

My kids are frantic about LEGO ships, and I was wondering which are largest ships ever made.

Of course, they need to be actually able to float in a pool.

**Tags:** size, boat


---

## 1 answers

### Answer by username_1 on 2017-07-05. Score: 6

The largest LEGO ship that officially floats in water is the Cargo Ship that comes in [7994-1 LEGO City Harbor](https://brickset.com/sets/7994-1/LEGO-City-Harbour):

[![7994-1 LEGO City Harbor set image](https://i.sstatic.net/GfsoB.jpg)](https://i.sstatic.net/GfsoB.jpg)

It is the only set which contains the [74 x 18 x 7 Boat Hull](https://www.bricklink.com/v2/catalog/catalogitem.page?P=57789c01), which is the largest boat hull LEGO has made.

> **Comments:**
> **username_2**: Which brings us to the question whether you can build boat hulls, i.e. water tight structures, out of non-boat parts!  
> **username_1**: @Aziraphale I tried once. Water is quite good at leaking between cracks. You could maybe connect multiple pieces that float on their own (some LEGO boat hulls are made this way).  
> **username_2**: I just found a very good question about the topic here: https://bricks.stackexchange.com/q/78/6498  
> **username_3**: You can make bigger boats that float using the boat hull segments LEGO made back in the eighties. Theoretically boats can be any size using those pieces (multiple of 8 studs I believe, as that is how long each segment is)  

---

