If you’ve ever encountered a colony tucked behind an expensive bathroom tile or deep inside a structural pillar, you know that a standard cutout isn’t always an option. When you can’t “go in,” you have to “lure out.” Today at the Bee Sanctuary, I’m walking you through how to build a Trap-Out Box using a standard 6-frame nuc.

The Theory of the Trap-Out

The goal is to create a one-way street. We want the bees to leave their inaccessible home but find it impossible to get back in. Within about 30 days, a successful trap-out will result in the queen and the entire colony relocating into your box.

Step 1: The Extension Frame

We start by building a four-sided wooden frame at the back of the nuc.

• Material: I typically use thick pine for durability, but plywood works just fine for a temporary 30-day setup.
• Attachment: Secure the frame to the back of the nuc with screws. Ensure there are zero gaps; if a bee can find a hole, she will bypass your trap.
• On-Site Tip: Sometimes it’s easier to attach the wooden frame to the wall first, then mount the nuc box onto the frame once you’re on location.

Step 2: The One-Way Cone

This is the “engine” of the trap-out.

• The Exit: Drill a hole through the extension into the nuc. This becomes the new front door for the colony.
• The Cone: Insert a cone made of steel or aluminium mesh. The tip of the cone should be about the size of a pen.
• The Logic: Bees are smart, but they can’t figure out how to fly back into that tiny tip. They will exit through the cone, realize they can’t get back in, and start clustering in your nuc box instead.

Step 3: Setting Up the “New Home”

You can’t just give them an empty box. You need to provide an incentive:

• Frames & Comb: Insert frames with starter comb into the nuc. In my current build, I fit three frames on the left and one on the right.
• Storage Space: This gives foragers a place to deposit the nectar and pollen they are still bringing back from the field.

Step 4: Security and Monitoring

• Guide Wires: I place screws on the sides of the box to act as anchors for guide wires. This keeps the box steady against the wall or tree.
• The Queen Guard: Once the queen eventually moves into the box to be with her workers, a Queen Guard at the entrance prevents her from absconding.
• Maintenance: Visit the site every two weeks. Check for “leaks” in the wall and monitor the frames for fresh brood, which signals that the queen has officially moved in.

Mission: 10,000 Colonies

We are on a mission to save 10,000 colonies, and the trap-out box is one of the most important tools in our kit for high-stakes urban rescues. It’s a game of patience, but the result—a healthy, intact colony ready for the Kyalami Apiary—is worth the wait.

Got a tricky removal coming up?

If you have questions about the cone dimensions or the best way to seal the wall, drop them in the comments below! I’d love to hear about your successful rescues.

Help us grow!

If this guide was helpful, please Subscribe to the Channel and hit the like button. Every sub brings us closer to our goal!

How should we proceed? Would you like to see a video of this box in action on a real-world wall removal, or should we look at how to build a custom bee vac next?