The LEGO Parts Guide

Discover the wide range of unique LEGO parts, find pieces you may have overlooked, and build something amazing!

2,345 parts in 12 categories

Parts by Category

LEGO has produced thousands of unique parts over the decades. Understanding the different categories helps you find the right pieces for your builds and organize your collection more effectively.

This guide organizes LEGO parts into 12 main categories based on their function and building applications. Click on a category to explore all parts.

Part Categories

BASIC

Bricks, Plates & Tiles

Classic LEGO bricks, plates, and tiles can be stacked vertically by pressing the round studs together with a little force. By pushing the studs of one brick into the "anti-studs" (tubes) of another brick, a firm connection is created, often called "Clutch Power."

109 parts • 15 subcategoriesView
WALL

Panels, Doors & Windows

Panels, walls, doors, and related parts make it easier to build models than using bricks and plates alone. Most parts in this category are taller than one brick.

123 parts • 7 subcategoriesView
SNOT

Studs Not On Top

These parts let you attach studs facing outward (Studs Not On Top) or place studs offset from the normal grid. SNOT bricks and brackets make sideways building possible.

53 parts • 3 subcategoriesView
ANGLE

Slopes & Wedges

Slopes, wedges, and windscreens allow you to incorporate angled sections into your model.

173 parts • 17 subcategoriesView
CURVE

Curved Elements

Build streamlined or organic shapes with a rich palette of curved parts.

354 parts • 15 subcategoriesView
ARTICULATION

Hinges & Joints

Parts that bend or rotate, enabling a wide range of interesting building techniques.

269 parts • 24 subcategoriesView
MINIFIG

Minifigures & Accessories

The classic LEGO minifigure and Friends mini-doll inhabit a rich world of clothing, accessories, weapons, and containers.

373 parts • 18 subcategoriesView
NATURE

Plants & Animals

Plants, animals, teeth, tails, and elemental forces bring the LEGO world to life.

199 parts • 12 subcategoriesView
VEHICLE

Wheels & Vehicle Parts

Wheels make your model move, brackets make them stronger, noses make them look faster, and tracks give them a destination.

162 parts • 18 subcategoriesView
TECHNIC

Pin & Axle System

Technic is a system in itself, focusing on connecting parts with pins and axles.

416 parts • 20 subcategoriesView
ELECTRONICS

Motors & Lights

Add light and motion to your creations with LEGO hubs, motors, lights, and sensors.

28 parts • 5 subcategoriesView
DUPLO

Large Bricks

The larger bricks for younger children are twice as big in every direction and compatible with regular LEGO bricks.

86 parts • 8 subcategoriesView

Sorting Your Parts

Understanding part categories helps you organize your collection more effectively. Here are some tips for sorting based on these categories:

For Small Collections

  • • Sort first by color, then by type
  • • Keep special parts (Technic, minifig) separate
  • • Use small containers with compartments

For Large Collections

  • • Sort first by part type/category
  • • Sub-sort by size, then color
  • • Use drawer systems (Akro-Mils style)

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