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LEGO

LEGO Ideas River Steamboat Building Set - Room Decor for Men & Women - Boat Model Building Kit for Adults, Ages 18+ - DIY Display for Bedroom or Office - Gift Idea for Birthdays - 21356

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Availability: In Stock.
Fulfilled by Amazon
Arrives May 22 – May 23
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Features

  • SET SAIL FOR NOSTALGIA Journey back to the era of elegant river travel with the LEGO Ideas River Steamboat (21356) building set for adults 18 and up
  • DETAILED MODEL BOAT Discover working paddle wheel mechanisms, detailed steam engine with moving pistons, crew quarters, passenger decks, and period-accurate furnishings
  • WORKING FEATURES & DETAILS Activate the paddle wheel mechanism, explore multiple furnished decks, and discover authentic steamboat details throughout this floating piece of history
  • DIY BOAT DECOR The completed model becomes an impressive display piece that celebrates maritime history and 19th-century river travel craftsmanship
  • IMMERSIVE BUILDING EXPERIENCE Access the LEGO Builder App for helpful 3D viewing tools and progress tracking
  • FAN-DESIGNED MASTERPIECE Relax and unwind with a building challenge dreamed up by LEGO fans and brought to life through LEGO bricks
  • DIMENSIONS This detailed steamboat measures over 15.5 in. (40 cm) high, 27 in. (69 cm) long and 5.5 in. (15 cm) wide and contains 4,090 pieces

Description

Set sail into history with the LEGO Ideas River Steamboat (21356) for adults ages 18 and up. This fan-designed masterpiece captures the golden age of river travel through meticulous brick-built craftsmanship. Adult builders can construct an authentic paddle steamer complete with a working paddle wheel, detailed pilothouse, crew quarters, and a functioning steam engine with visible moving parts. As you build, discover intricate details like the music stage, restaurant, and vintage furnishings throughout every deck from the elegant passenger areas to the bustling engine room. The completed model doubles as sophisticated home or office decor that transforms your space into a nautical museum. An ideal gift for boat enthusiasts, history lovers, and men and women who enjoy detailed model building kits, this collectible offers a relaxing creative experience that celebrates maritime heritage. For an immersive build, the LEGO Builder app provides helpful 3D viewing tools and progress tracking. Contains 4,090 pieces.

Product Dimensions: 20.59 x 18.9 x 7.09 inches


Item Weight: 11.09 pounds


Item model number: 6530094


Manufacturer recommended age: 18 years and up


Release date: June 30, 2025


Manufacturer: LEGO


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 22 – May 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Neat set
Fun build - took a little over 2 weeks to build part time. Looks great although something happened with the rudder as not working when finished - was working as putting together - but not going to take apart to see where the problem is. Minor cons are: Stickers missing but where items located, you can’t see that. I’d like to think they would provide something other than what looks like croissants to adorn the railing but this is included in other sets as decorations- only makes sense for a bakery. ... show more
Reviewed in the United States on August 30, 2025 by Mike G
    • Everything You Need
I was so excited to get this kit. I've always been amazed by the realistic looking designs that can be made with Lego's but just don't have the talent to something like that on my own. That's why this is so perfect, they give you everything you need and great directions so anyone can do it. It's also handy that the box has a large full color picture on it in too. Never hurts to have some visual directions as well. I like that the pieces come individually bagged so it's easy to sort and organize what you need to dive right in and get started. There are a lot of pieces and intricate work so being a novice and with limited time this will take me a while to do which for me works since I was looking for a project but for those with more time to put in or better at these big Lego builds you could probably knock it off much quicker. This will be quite a show piece when it's done and is amazing that it's made of Lego's and that I did it. I'm already looking at the lighting kits they sell that are made to go with this. Now I just have to figure out the perfect spot to display it. ... show more
Reviewed in the United States on August 17, 2025 by Gabby Harper
    • The detail and moving parts make this a work of art
Yes it's expensive, but that's pretty standard for the price of LEGO nowadays. This would be a ton of fun for kids with all the moving parts and minifigs. The instructions are a book but are very easy to follow, and there are red highlights on the added pieces for each page (this wasn't always the case). The quality of lego is excellent as they fit together and the individual pieces are as sturdy as they need to be. And the detail as you're putting it together is impressive. Much of it gets covered but the rest of the boat but that makes it realistic like in a real boat. And the finished piece makes quite the display. If you're a lego collector, this is one to add to your collection. ... show more
Reviewed in the United States on August 20, 2025 by Jared
    • Lego does it again!
A beautifully detailed set for the history, engineering, or sailing buff! Features moving parts, working paddles, an engine room, and just LOADED with details inside and out. Wonderfully thought out, this is one for the older kids or adults, or younger kids with adult help as it's more advanced. Is very big once built and perfect for display on a shelf. Very nice for the enthusiast. ... show more
Reviewed in the United States on August 20, 2025 by Kate
    • Great and Fun Lego Set
Great Lego set. Hard to go wrong with anything from Lego. This set is very very large with a lot of pieces. Definitely the largest set I have ever owned. Like always it has good detailed instructions. I am only about maybe half way through after spending a good amount of two weekends on it. I think younger than 18 years old could work through it with time so do not let that dissuade you. The only major issue with a Lego set is the very high cost they now have compared to when I grew up and they were affordable. That said, you get a lot of time and fun out of this set, so if it is in the budget I would recommend it ... show more
Reviewed in the United States on July 21, 2025 by kstate27
    • Great Lego set!
Review Image by Rachel Rachel
Review Image by Rachel Rachel
Review Image by Rachel Rachel
I’m so excited to get this put together with my son. It’s a beautiful replication of the old time steam boats that you might see on the Mississippi River. Lego did a great job with this one! It will more than likely take some time to get it together, but time well spent with my son. It’s a gift that will surely put a big smile on his face as he has always loved Lego. ... show more
Reviewed in the United States on July 23, 2025 by Rachel Rachel
    • Great detail and fun for Lego adult!
What can I say. Another win for Lego. The attention to detail is amazing on this. I especially love the paddle wheel mechanism. I’m 40 years old and this was a fun build for about two weeks on and off. There are a lot of repeated parts so I would recommend sorting the pieces in bins to make the build process more enjoyable. ... show more
Reviewed in the United States on July 27, 2025 by T. C.
    • Such a cool looking Lego set
Review Image by T. T. T. T.
Wow…what a great set! It took my 16 and 13 year old 3 days to complete this. They thoroughly enjoyed it and said it wasn’t that difficult even though it was aged for 18 and above. It makes for a nice piece on our console.
Reviewed in the United States on July 25, 2025 by T. T. T. T.

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