How many pieces does the LEGO Catamaran (42105-1) have?

The LEGO Catamaran set (42105-1) contains 405 pieces. It was released in 2020 as part of the LEGO Technic theme.

How can I find missing parts for LEGO set 42105-1?

On BrickMissing you can check which parts from the LEGO Catamaran (42105-1) you already own. Add your LEGO collection and we'll show exactly which of the 405 pieces you're missing and which you already have.

Can I build the LEGO Catamaran with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 405 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Catamaran from?

The LEGO Catamaran (42105-1) belongs to the LEGO Technic theme. You can browse all Technic sets on BrickMissing to find more sets from this theme.

Catamaran

42105-1 Technic 2020 405 parts 3.9% catalog rarity Intermediate

Navigate the open water with the LEGO Technic 42105 Catamaran. This 405-piece LEGO Technic Catamaran (42105-1) offers a realistic sailing experience, notably being the first Technic model designed to float directly on water. The classic 2-hull design authentically recreates a race boat, featuring functional sails that move, adjustable dagger boards to enhance stability, and a working rudder for steering control. Builders can explore the mechanics of boat racing, then take to the bathtub to test its buoyancy and maneuverability. The set also provides an alternate build, transforming the twin-hulled vessel into a powerful Race Power Boat for extended play and engineering exploration. This model serves as a detailed recreation, allowing enthusiasts to examine the intricacies of a racing catamaran.

42105-1

3D build progress

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Parts Inventory

🧱 405 parts

Showing the first 12 rows of the parts list (405 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Red	2×	€0,29 View at LEGO → View
Black	3×	€0,38 View at LEGO → View
Lime	2×	€0,38 View at LEGO → View
Black	3×	€0,38 View at LEGO → View
Lime	2×	€0,38 View at LEGO → View
Dark Bluish Gray	7×	Check price → View
Reddish Brown	4×	€0,11 View at LEGO → View
Black	2×	€0,11 View at LEGO → View
Tan	2×	€0,36 View at LEGO → View
Light Bluish Gray	16×	€0,05 View at LEGO → View
White	6×	€0,23 View at LEGO → View
Light Bluish Gray	1×	€0,13 View at LEGO → View

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Catalog rarity

How common are the parts in Catamaran?

3.9%Low rarity

more commonless common

3 of 76 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

6.5%

All sets

6.7%

Least common in our catalog

Boat / Pontoon 36 x 7 x 7 · Lime · only this set in our catalogSail, Triangular, · Unknown · only this set in our catalogSail, Triangular, · Unknown · only this set in our catalog

How we calculate this →