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Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Tree of Creativity

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4000026 Tree of Creativity

836 pieces in 129 part and color combinations, plus 1 minifigure.

LEGO counts 837 pieces. This inventory comes from a separate parts catalog and lists 840, including the 4 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

2 more look-alike pairs
  • Cone 1 x 1 [Top Groove] Black ×1 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Plate 1 x 2 Black ×1 Dark Bluish Gray ×8 Black is darker than Dark Bluish Gray.
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Piece checklist

Plates 438 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×8
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×3
  • Plate 1 x 3 Dark Green Part 3623 Element 6618081 or 6013975 ×1
  • Plate 2 x 3 Dark Green Part 3021 Element 6013801 or 4650244 ×1
  • Plate 2 x 4 Dark Green Part 3020 Element 6618075 or 4586057 ×40
  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×4
  • Plate 1 x 6 Dark Tan Part 3666 Element 6015424 ×6
  • Plate 6 x 12 Dark Tan Part 3028 Element 4266897 ×2
  • Plate 1 x 2 Green Part 3023 Element 302328 ×43
  • Plate 2 x 2 Green Part 3022 Element 302228 ×53
  • Plate 2 x 2 Corner Green Part 2420 Element 4157120 or 242028 ×43
  • Plate 2 x 3 Green Part 3021 Element 302128 ×24
  • Plate 4 x 6 Green Part 3032 Element 4116671 ×10
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×7
  • Plate 1 x 1 Lime Part 3024 Element 4621557 or 4561480 2 spares in the box ×120
  • Plate 2 x 2 Magenta Part 3022 Element 6109930 or 6091599 ×1
  • Plate 2 x 2 Medium Azure Part 3022 Element 6603309 or 4625032 ×1
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×1
  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×4
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×19
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×13
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box ×2
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 Also in White ×1
  • Plate 1 x 1 Trans-Dark Blue Part 3024 Element 6513965 or 6252044 1 spare in the box ×5
  • Plate 1 x 2 Trans-Dark Blue Part 3023 Element 6514004 or 6240215 ×4
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 Also in Trans-Clear ×1
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2
  • Plate 1 x 1 Yellow Part 3024 Element 302424 1 spare in the box ×4
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×11

Bricks 109 pieces

  • Brick 1 x 1 Dark Tan Part 3005 Element 6001824 or 4497070 ×21
  • Brick 1 x 4 Dark Tan Part 3010 Element 6001822 or 4497072 ×2
  • Brick 1 x 6 Dark Tan Part 3009 Element 4497071 or 4247151 ×6
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×2
  • Brick 2 x 2 Corner Red Part 2357 Element 235771 or 235721 ×2
  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×13
  • Brick 1 x 3 Reddish Brown Part 3622 Element 4245312 or 4211220 ×21
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×6
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×5
  • Brick 2 x 2 Corner Reddish Brown Part 2357 Element 4211200 ×29
  • Brick 2 x 4 Reddish Brown Part 3001 Element 4211201 ×1
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×1

Plates Round Curved and Dishes 70 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×9
  • Plate Round 1 x 1 with Open Stud Dark Red Part 85861 Element 6168645 or 6073031 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Green Part 6141 Element 4569058 or 4519965 1 spare in the box ×49
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box Also in Trans-Red ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box Also in Red ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×1

Bricks Special 44 pieces

  • Brick Special 1 x 2 x 2/3 with Studs on Sides Black Part 4595 Element 6681661 or 4523339 ×1
  • Brick Special 1 x 1 Studs on 4 Sides Dark Bluish Gray Part 4733 Element 4210700 ×1
  • Brick Special 1 x 2 Palisade [aka Log] Dark Brown Part 30136 Element 4519970 ×21
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×6
  • Brick Special 1 x 1 with Stud on 1 Side Reddish Brown Part 87087 Element 6062574 or 4618545 ×9
  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×6

Bricks Sloped 38 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box Also in Trans-BrownAlso in Dark Bluish Gray ×7
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box Also in BlackAlso in Trans-Brown ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Brown Part 3660 Element 4648296 ×1
  • Brick Sloped Inverted 45° 2 x 1 Dark Tan Part 3665 Element 6121959 ×3
  • Brick Sloped 33° 3 x 1 Reddish Brown Part 4286 Element 4211197 ×10
  • Brick Sloped 33° 3 x 2 Reddish Brown Part 3298 Element 4216625 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Reddish Brown Part 3040b Element 4211199 ×8
  • Brick Sloped 45° 2 x 2 Reddish Brown Part 3039 Element 4211202 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Brown Part 54200 Element 6245263 or 4244368 1 spare in the box Also in BlackAlso in Dark Bluish Gray ×1

Technic Pins 23 pieces

  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×6
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×15
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Dark Bluish Gray Part 11214 Element 6015356 ×1
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×1

Plates Special 22 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Black Part 61252 Element 6308000 or 4517925 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Light Bluish Gray Part 88072 Element 6261353 or 4611702 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Lime Part 15573 Element 6092592 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Red Part 4081b Element 6281994 or 4632572 ×2
  • Plate Special 1 x 2, Top Clip [Split] Red Part 92280 Element 4597713 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Reddish Brown Part 60897 Element 6337003 or 6066142 ×1
  • Plate Special 1 x 2 with Door Rail Reddish Brown Part 32028 Element 4645103 or 4541288 ×1
  • Plate Special 4 x 4 with 2 x 2 Opening Reddish Brown Part 64799 Element 6070442 ×5
  • Plate Special 1 x 2 with Handle on End [Closed Ends] White Part 60478 Element 6552131 or 4515364 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Yellow Part 61252 Element 6347294 or 4540040 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Yellow Part 15573 Element 6092583 ×2

Tiles 19 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×2
  • Tile 1 x 2 with Groove Dark Tan Part 3069b Element 4496699 ×4
  • Tile 1 x 6 with Groove Dark Tan Part 6636 Element 4507047 or 4251129 ×6
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×2
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×2
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×3

Technic Beams 14 pieces

  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×2
  • Technic Beam 1 x 15 Thick Blue Part 32278 Element 6057799 or 4144299 ×1
  • Technic Beam 1 x 5 Thick Blue Part 32316 Element 4142134 or 4128591 ×1
  • Technic Beam 1 x 11 Thick Dark Bluish Gray Part 32525 Element 4603472 or 4534914 ×1
  • Technic Beam 1 x 15 Thick Green Part 32278 Element 6418453 or 6210626 ×1
  • Technic Beam 1 x 3 Thick Orange Part 32523 Element 6102618 or 4655127 ×2
  • Technic Beam 1 x 13 Thick Red Part 41239 Element 4522938 or 4262082 ×1
  • Technic Beam 1 x 13 Thick White Part 41239 Element 6634561 or 4620671 ×1
  • Technic Beam 1 x 9 Thick Yellow Part 40490 Element 6115616 or 4187136 ×2
  • Technic Beam Triangle Thin [Type II] Yellow Part 99773 Element 6331435 or 6010863 ×2

Bricks Curved 11 pieces

  • Brick Arch 1 x 3 Light Bluish Gray Part 4490 Element 4645397 or 4519971 ×1
  • Brick Arch 1 x 5 x 4 [Continuous Bow, Raised Underside Cross Supports] Reddish Brown Part 14395 Element 6044725 ×10

Technic Bricks 10 pieces

  • Technic Brick 1 x 1 with Pin Hole Blue Part 6541 Element 4119014 ×1
  • Technic Brick 1 x 2 [2 Pin Holes] Red Part 32000 Element 4179355 or 4101764 ×2
  • Technic Brick 1 x 1 with Pin Hole Reddish Brown Part 6541 Element 4620075 or 4528461 ×6
  • Technic Brick 1 x 2 [2 Pin Holes] White Part 32000 Element 6564911 or 3200001 ×1

Bricks Round and Cones 9 pieces

  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 Also in Dark Bluish Gray ×1
  • Cone 1 x 1 [Top Groove] Dark Bluish Gray Part 59900 Element 4529240 Also in Black ×4
  • Cone 1 x 1 [Top Groove] Trans-Yellow Part 59900 Element 6514022 or 6337597 Also in Yellow ×1
  • Brick Round 1 x 1 with Fins, Open Stud White Part 4588 Element 6331225 or 6321197 ×1
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×1
  • Cone 1 x 1 [Top Groove] Yellow Part 59900 Element 4525464 Also in Trans-Yellow ×1

Tiles Special 9 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Black Part 15712 Element 6335388 or 6066102 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Blue Part 2412b Element 241223 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×4
  • Tile Special 1 x 1 with Clip with Rounded Edges Yellow Part 15712 Element 6348056 or 6116726 ×1

Technic Axles 4 pieces

  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×4

Technic Bushes 4 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×4

Bars, Ladders and Fences 2 pieces

  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 1 spare in the box ×1
  • Bar 3L White Part 87994 Element 6552205 or 6428803 1 spare in the box ×1

Minifig Accessories 2 pieces

  • Food Ice Cream Scoops White Part 6254 Element 6458475 or 625401 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Reddish Brown Part 98138 Element 6284586 or 6133854 1 spare in the box ×2

Minifig Upper Body 1 piece

  • Torso Mechanical, Battle Droid White Part 30375 Element 6550166 or 4533503 ×1

Panels 1 piece

  • Panel 1 x 2 x 1 [Rounded Corners] Yellow Part 4865b Element 6146219 ×1

Plates Wedged 1 piece

  • Wedge Plate 3 x 2 Right Reddish Brown Part 43722 Element 6021336 or 4585489 ×1

String, Bands and Reels 1 piece

  • Chain 6L [5 Links] Dark Bluish Gray Part 92338 Element 6311445 or 4600437 ×1

Technic Gears 1 piece

  • Technic Gear 16 Tooth Reinforced [New Style] Light Bluish Gray Part 94925 Element 4640536 ×1

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Minifigures 1 figure

  • Man, LEGO House 'Home of the Brick' Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

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Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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