LEGO 21356 Building Instructions - River Steamboat

Ideas • 2025

Where can I find LEGO 21356 River Steamboat instructions?

LEGO 21356 River Steamboat is a 4,090-piece LEGO Ideas set released on 7 April 2025. This page provides a step-by-step building instruction video. The page also links to LEGO's official building instructions for this set.

Official LEGO building instructions

Open the official LEGO instruction page to select and download the available PDF manual books.

VIEW OFFICIAL LEGO MANUALS

Instruction videos

LEGO 21356 set details

Set number	21356
Theme	Ideas
Year	2025
Pieces	4090
Age rating	18+
Model dimensions	15.5 in. (40 cm) high, 27 in. (69 cm) long and 5.5 in. (15 cm) wide
Release date	7 April 2025
UK MSRP	£289.99
US MSRP	$329.99
EU MSRP	€329.99

Set overview

LEGO 21356 River Steamboat is a 4090-piece LEGO Ideas set released in 2025.

This page includes one step-by-step instruction video for building River Steamboat.

Notable features

a display stand
included minifigure content