A trapping tunnel is a box to put a rat trap inside. The tunnel is designed to protect your young family members and pets from the trap.
These instructions have been published courtesy of Predator Free Mt Cook and Newtown, who have been busy making and deploying tunnel boxes out to their community, thanks team!
Step 1 - get what you need
4 x fencing timber (150mmx 25mm x 500mm)
10 x 60mm jolt head nails
1 x 75mm flat head nail
7 x staples (19 x 2mm)
1 x front mesh screen (with opening) (19mm square)
1 x back mesh screen
1 x rat trap
Step 2 - fasten base to the sides
Hammer in a 60mm nail in each corner of the base piece through to the walls. This is a bit fiddly to hold the pieces in the correct position, so you may need some help for this (we recommend using a block of 4 pieces of timber screwed together – as in the picture below). Use a nail in the centre of each side for added strength.
It should now look like this:
Step 3 – nail the lid on
Line up the sides to the lid and nail in each corner. It should now look like this:
Step 4 - staple on the front mesh
Using a staple in each corner, fasten the front back mesh to the tunnel. Ensure the entrance hole is level with the top of the base. File back the sharp edges on the mesh hole entrance.
Step 5 - staple on the back mesh
Hammer a staple vertically on each corner of the bottom wire – the mesh should hinge open like a door:
Hammer the final staple in the centre of the top piece of wood just above the top wire of the mesh. Hammer in so the 75mm nail can be inserted through the staple without being too loose. The nail holds the door closed. The tunnel is now ready for you to insert the trap.
Step 6 - put in the trap
Bait and set the rat trap. Slide in the tunnel with the trip pedal facing away from your hands (i.e. facing the tunnel entrance). Try to keep the trap near to the mid-back of the tunnel so it is clear of the entrance to the tunnel – reduces the risk of snapping curious pets or children’s fingers.
Ta da… a trapping tunnel ready to go. A bit rough and ready, but will do the job just fine.