Types of Trap Doors
The door is usually the most unique part of the trap and we have seen literally hundreds of different designs. Below we will explain the differenent types of most commonly used doors on hog traps.
Spring Loaded Swinging Doors
- A reliable door that is uncomplicated and easy to build. It's very reliable and difficult for hogs to escape from. The opening can't be built as wide as some of the other types of doors but it can be as tall as you want.
- It can be used with or without a tripping mechanism by simply omitting it and allowing the hogs to push through the door, however by including the trip and allowing the door to be initially open you will increase your odds of success.
- This is a continuous catch door meaning that hogs can continue to enter the trap until it is full with minimal chance of the hogs already in the trap escaping.
Door shown halfway open. When trap is set door should be fully open as far as it will go to allow the maximum opening and prevent hogs from running into it when they enter the trap.
- This door type can be built extremely strong and is virtually escape proof. The biggest downside is that the hog or hogs that are in the trap when the door is closed is all that you're going to get. There is no way for additional hogs to enter once the door closes.
From the pictures you can see where the guillotine door gets it's name. In the open position it's fully up and out of the way and when tripped it drops straight down to form a virtually escape proof barrier.
- A more complicated design with the most moving parts since there are two doors that must close simultaneously. The advantage to this setup is that it allows the widest possible opening when the doors are open, up to the full width of the trap, while allowing a very small chance of escape when additional hogs enter.
- They can also be used without a tripping mechanism though the use of one is highly recommended.
- Continuous catch door
Saloon type door shown open and closed. Pictures courtesy of and doors manufactured by J&S Ag Fabrication www.hawgtraps.com
- Simple construction that omits any springs and uses gravity to close the door and is commonly used without a tripping mechanism.
- If a door hold open / tripping mechanism is used then it could be built where the whole front of the trap would be open before the door closes which is good for getting trap shy hogs to enter. The downside to doing that would be that doing that would provide a greater chance for already trapped hogs to escape when other hogs enter because of the large opening.
- While rare, it's possible for hogs to dig enough around the front door to push the door up with their snout and squeeze through to escape. This can be prevented by putting a floor in the trap or welding a support across the bottom that the door closes against.
To see step by step instructions with pictures of how to build your own box style hog trap or to get some ideas for your own design check out our Building A Hog Trap
Here is a small trap with a root type door. This trap is designed with a trip line to initially hold the door open until the first hog enters.