Get inspired for Halloween with these clever Halloween classroom doors for elementary and middle school.

Like these classroom door decorating ideas? You may also like our science classroom door ideas and our elementary classroom door ideas.
One of the best things about teaching science in elementary school is the fact that you get to decorate your classroom door or walls.
All the teachers I know say that decorating their classroom is one of their favorite parts of the job! And personally, I love a highly-decorated classroom as a parent- because decorating teachers tend to be more involved across the board!
If you need new inspiration for your Halloween classroom doors, these science decorating ideas are just what you need to bring a bit of spark back into the STEM classroom.
Although you don’t need science lab decoration ideas to teach STEM activities for kids, it certainly makes your classroom more exciting for kids and you’ll totally win your school’s Halloween door decorating contest (if your school doesn’t do this yet, start it!)
HOW TO DECORATE A CLASSROOM DOOR

Decorating a classroom door doesn’t have to be complicated, although a lot of schools offer prizes for the best Halloween classroom doors (or you could always start a contest pool with your fellow teachers!).
Although orginal ideas are a lot of fun, sometimes you won’t have time to come up with a unique Halloween door idea on your own. That’s where we come in!
Most classroom doors are made using various art supplies. Bright green, orange, black, and purple are popular colors at Halloween.

One quick tip is to use pre-made letters. You do NOT want to be spending hours cutting out paper letters. You can always reuse the letters for multiple ideas.
If you can’t use staples, sticky tack or duct tape tends to have the strongest bonding power.
Before heading to the craft store (or Amazon, hello), it helps to sketch out the idea on paper. Then you can use a measuring tape to find out exactly how much of each item you will need so you don’t over-buy.
And the beauty of these doors is that if you are careful, you can use them year after year with just a few touch-ups.
SUPPLIES FOR DECORATING HALLOWEEN CLASSROOM DOORS
If you don’t know what to get- try these supplies for your Halloween classroom door planning.
You can also find many of these supplies at a local craft store- but if you’re anything like me you never can make it to the craft store before it closes! I’d much rather order at 10 PM on a Thursday and have things arrive on my doorstep by Saturday.
The products listed below are affiliate links.
TREND enterprises, Inc. Black & White Terrific Trimmers, Variety PackArrow Fastener 5650G-6 Easyshot Decorating Stapler, GreenArtSkills Neon Poster Letters, 4 Neon Colors, 347 Pieces, 1 Glue Stick (PA-1225)Teacher Created Resources Science Accents (4740)Science Party Favor Labels | 180 StickersRainbow Duo-Finish Kraft Paper Roll, 40 lb, 48 Inches x 200 Feet, Sky BlueBlack Paper Roll 18 by 1800 Inches (150 Feet) - Use it as Black Butcher Paper, Craft Paper, Bulletin Board Paper, Banner Paper, Table Runner Roll, Backing Paper, Blackout Paper, Wrapping Paper, Art Paper3M Multi-Use Duct Tape, 2930-C, 1.88 Inches by 30 YardsElmer's All Purpose School Glue Sticks, Washable, 7 Gram, 30 CountPacon 4Modern Mix EZ LettersCarson-Dellosa Scalloped Borders Variety Set - IV, 2-1/4 in X 3 ft, Set of 4Creative Teaching Press Bold & Bright Sticky Notes Border (8346)Bulletin Borders - 6-Pack Bulletin Board Borders, Geometric Pattern and Back to School Theme Decorative Trimmers, Border Trim for Classroom, School, 2.25 x 36 inches
18 CLASSROOM DOOR DECORATION IDEAS FOR HALLOWEEN

Give your classroom doors a science twist this Halloween!
Perfect for a science lab door decoration, or for any classroom that wants to embrace mad science this October!
If you’ve already planned all of your science experiments for kids for the year, then you’re ready to move on to Halloween science classroom decorating!
Note: If you know where these come from, or are the owner of these images, please reach out to me so I can give proper credit!
Without further ado, halloween door decorations for your classroom!

This door says “what’s brewing in the library, but you could make it fit any classroom theme. I like the idea of listing what you are studying in science here!

Let hte world know that you are teaching the next famous scientist in your classroom (hopefully they don’t go mad).

This science bulletin board showcases skeleton diagrams, which is perfect for Halloween.

Make your door a showcase for Halloween animal facts, like this bat door!

Watch out, science is dangerous.

This isn’t a Halloween classroom door, but you could easily turn it into one. I like the touch of the fire extinguisher.

Make sure everyone at your school knows that your classroom is just for your grade- or for science students only.

This is the perfect science twist for a Halloween door decorating contest!

This is the perfect Halloween classroom door for your STEM lab.

This 3D spider diagram is sure to freak anyone out this Halloween.

Loving this cute version of a spider diagram.

Wrapped up in any subject, like science, could also work instead of the word “learning.”

Loving all the mad scientist door decorations for Halloween! The photos of the kids are a fun touch.

If you need to make mad scientist door decorations, here you go.

Show the world what you’re learning in your class using this fun science bulletin board decorating idea.

You can get batty in any class or subject. I like the simplicity of this Halloween door decoration.

What’s scarier than a chemical spill? Nothing, which is why this is the perfect Halloween classroom door.

Throw it back to the days of the muppets with this science lab decoration idea.

So there you have it! These are the best science-themed Halloween classroom doors for your classroom Halloween door contest.