How to Draw a Key and Lock

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Learn how to draw a great looking Key and Lock with easy, step-by-step drawing instructions, and video tutorial.

By following the simple steps, you too can easily draw a beautiful Key and Lock.

How to Draw a Key and Lock Step 10
Complete Key and Lock drawing

Jump to the step-by-step instructions.

Locks are mechanical devices that secure doors. Once a lock is in place, it can only be opened with a key or secret code. The oldest known lock was discovered near the ancient Babylonian city of Nineveh. It may be 4,000 years old.

Along with the invention of the lock came, naturally, the key. Keys are designed to fit specific locks. The bulges and protrusions on the key are "keyed" to match the tumblers inside the lock. These protrusions are called ridges or teeth.

Locks and keys are a part of our daily lives - most people lock their cars and homes whenever they leave or enter them. Gym lockers, school lockers, gates, and buildings all have locks.

Scroll down for a downloadable PDF of this tutorial.

As such, locks and keys have entered the English language as well. To keep something "under lock and key" is to keep it hidden away, inaccessible, or protected. To lock someone up and throw away the key means to imprison them forever. And to give someone the key to your heart is a phrase expressing affection.

Would you like to draw a cartoon lock and key? This easy, step-by-step cartoon object drawing tutorial is here to show you how. Our drawing guide depicts a padlock, a common type, and an old-fashioned skeleton key. All you will need is a pencil, an eraser, and a sheet of paper.

If you liked this tutorial, see also the following drawing guides: Treasure Chest, Door, and Cartoon House.

Step-by-Step Instructions for Drawing a Key and Lock

How to Draw a Key and Lock Featured Image

How to Draw a Great Looking Key and Lock for Kids, Beginners, and Adults - Step 1

How to Draw a Key and Lock Step 01

1. Begin by drawing an “L” shaped line. Then, draw a short straight line extending from it at a diagonal angle. These lines form the straight sides of the lock. Next, enclose the figure by connecting the straight sides with a long curved line. This is called the lock body.

Easy Key and Lock Drawing - Step 2

How to Draw a Key and Lock Step 02

2. Draw straight lines to enclose a parallelogram at the top of the lock. Then, draw a long curved line from its corner to the lock’s bottom.

Easy Key and Lock Drawing - Step 3

How to Draw a Key and Lock Step 03

3. Draw three small ovals on the face of the lock - one in each of the upper corners, and one at the base.

Easy Key and Lock Drawing - Step 4

How to Draw a Key and Lock Step 04

4. Draw the keyhole. Outline the keyhole shape - a narrow triangle with a circle at its tip, resembling the shape of a chess pawn. Make it appear three-dimensional by drawing straight and curved lines along two sides of it, then connecting these lines to the outline at the corners.

Easy Key and Lock Drawing - Step 5

How to Draw a Key and Lock Step 05

5. Next, draw the shackle or shank, erasing as necessary. Draw two parallel, inverted “J” shaped lines emerging from the top of the lock. At the end of the inner “J,” draw three lines like three sides of a square. Then, draw a short line to even the lengths of the “J” shaped lines. Connect the lines on both ends, using short curved lines. Draw a curved line across the bottom of the partial square to give the mechanism a three-dimensional appearance.

Easy Key and Lock Drawing - Step 6

How to Draw a Key and Lock Step 06

6. Begin to draw the key, erasing as necessary. Draw two long, straight, horizontal, parallel lines. Connect them on one end using a short curved line. This is called the blade, shank, or stem of the key.

Easy Key and Lock Drawing - Step 7

How to Draw a Key and Lock Step 07

7. Use a long curved line to enclose a rounded shape at the open end of the key. This is called the bow of the key.

Add More Details to Your Key and Lock Picture - Step 8

How to Draw a Key and Lock Step 08

8. Enclose another, smaller rounded shape parallel to the first.

Complete the Outline of Your Key and Lock Drawing - Step 9

How to Draw a Key and Lock Step 09

9. Draw the bit of the key, erasing as necessary. Extend “L” shaped lines from the pin or post (the tip of the key). Connect these to additional “L” shaped lines. Enclose the figure with a long straight line. Then, enclose small rectangles on one side of the bit, giving it a three-dimensional appearance.

Color Your Key and Lock Drawing

How to Draw a Key and Lock Step 10

Color your cartoon lock and key.

For more great Things to draw tutorials, see the 100 Simple Things to draw Ideas post.

Easy, step by step Key and Lock drawing tutorial
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