LEGO 3818 Bikini Bottom Undersea Party: Set Guide

Specifications

Set number	3818
Release year	2012
Piece count	471
Minifigures	4
Theme	SpongeBob SquarePants
Building instructions	Download the instructions on lego.com

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LEGO set 3818 Bikini Bottom Undersea Party, released in 2012 as part of the SpongeBob SquarePants line, has 471 pieces. Its inventory breaks down into 181 different lots, across 30 colors.

Inventory of set 3818

The inventory of set 3818 lists 471 pieces, spare parts excluded: 181 different lots (one shape in one color) for 135 part shapes. The box also contains 17 spare parts, for small elements that are easy to lose.

Colors of set 3818

Main color: orange, making up 23% of the parts, followed by light bluish gray (14%) and red (13%).

Color	Parts	Share
Orange	110	23%
Light Bluish Gray	64	14%
Red	63	13%
Blue	45	9.6%
Black	29	6.2%
Reddish Brown	22	4.7%
Tan	21	4.5%
Dark Bluish Gray	20	4.2%
Medium Blue	17	3.6%
White	13	2.8%
Other colors (20)	66	14%

Part types

Type	Parts	Share
Bricks Sloped	77	16%
Bricks	70	15%
Plates Round Curved and Dishes	59	13%
Plates	59	13%
Plates Special	34	7.2%
Hinges, Arms and Turntables	29	6.2%

Most common parts in set 3818

Part	Color	Quantity
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) 54200	Orange	16
Plate Round 1 x 1 with Solid Stud 6141	Orange	15
Plate Special 1 x 2, Top Clip [Split] 92280	Red	12
Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin 3048c	Orange	10
Brick 1 x 1 3005	Orange	9
Brick Sloped Inverted 75° 2 x 1 x 3 2449	Orange	8
Brick 1 x 2 3004	Orange	8
Plate 1 x 2 3023	Red	8
Brick Sloped 75° 2 x 1 x 3 with Hollow Stud 4460b	Orange	8
Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] 73983	Red	8

121 of the 135 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts

Exclusive parts in set 3818

7 part shapes in set 3818 appear in no other set in the catalog, most often printed elements, stickers or molds specific to the model. If one gets lost, you will need to look for it individually, for example on BrickLink, rather than in another set.

Part	Color
Panel 1 x 2 x 2 with Side Supports - Hollow Studs with Porthole Blue on Orange Background Print 87552pr0006	Trans-Clear
Sticker Sheet for Set 3818-1 72333
Torso Shirt with Sand Green Neck and Pink Lei Print, Tan Arms, Sand Green Hands 973c26h25pr2009	Tan
Body Pufferfish with Mrs. Puff with Pink Flower Print (SpongeBob) 60339pr0002	Tan
Torso Bare Chest with Belly Button (Navel) and Pink Lei Print, Light Nougat Arms and Hands 973c02h02pr1983	Light Nougat
Minifig Head Special, Starfish with Sunglasses Print (Patrick) 54873pr0007	Light Nougat
Minifig Head Special, SpongeBob with Open Smile Large and Blue Lei Print 54872pr0010	Yellow

Rebuilding set 3818 from another set

Share of the parts of set 3818 found in each of these similarly sized sets, counting shape, colour and quantity:

Set	Found	Parts	Release year
3827 Adventures in Bikini Bottom	25%	579	2006

No similarly sized set goes above 25%: the model relies on a little-shared assortment, most of which has to be gathered piece by piece.

Size of set 3818 within its line

With 471 pieces, set 3818 ranks #2 out of 14 SpongeBob SquarePants sets in our database, which have an average of 313 parts. Among the 321 sets released in 2012, it ranks #51.

Included minifigures

Frequently asked questions

How many pieces does LEGO set 3818 Bikini Bottom Undersea Party have?

LEGO set 3818 Bikini Bottom Undersea Party has 471 pieces. It was released in 2012 as part of the SpongeBob SquarePants theme.

What year was LEGO set 3818 released?

Set 3818 Bikini Bottom Undersea Party was released in 2012 and belongs to the SpongeBob SquarePants theme.

Which minifigures are included in set 3818?

Number of minifigures in LEGO set 3818 Bikini Bottom Undersea Party: 4. Their names and quantities are listed in the “Included minifigures” section.

Where can I find the building instructions for set 3818?

The instructions for LEGO set 3818 Bikini Bottom Undersea Party can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 3818.

What is the main color of LEGO set 3818?

Orange, with 110 out of 471 pieces, or 23%. Next come light bluish gray (14%) and red (13%).

How many different parts does set 3818 contain?

Set 3818 has 181 different lots (one shape in one color), covering 135 part shapes. Most common part: Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) in orange, with 16 copies.

Does LEGO set 3818 contain any exclusive parts?

Yes: 7 part shapes exist in no other set, for example: Panel 1 x 2 x 2 with Side Supports - Hollow Studs with Porthole Blue on Orange Background Print.

Which similarly sized set contains the most parts from set 3818?

Set 3827 Adventures in Bikini Bottom, released in 2006: it supplies 25%, counting shapes, colors and quantities.