How to build a crab trap step by step

How to build a crab trap quickly and easily?

Crab fishing is an entertaining but also economical activity because of the delicious taste of crabs.

And the most common way that we often use it is by using crab traps. If you know how to create a crab trap, then you will find it simple and inexpensive.

But before you do, keep in mind that it is important to check the local regulations for crab fishing. Then you just need to use a little skill of yourself to be able to embark on implementing crab traps.

how to build a crab trap
Crab fishing is an entertaining but also economical activity

If you do not know how to make them, let us introduce you to the basic steps to create a best crab trap for yourself below.

How to build a crab trap step by step



  • Wire cutters.
  • Hog ring fastening tool.
  • Two-by-four board (3′ long).


  • Crab Pot wire
  • Galvanized 11-gauge smooth wire
  • Standard galvanized crab pot staples
  • Galvanized eelpot wire
  • Piece of shock cord
  • Cull rings and plastic hook
  • Small sacrificial zinc anode

Build crab trap

And when your preparations are complete, let’s do it together!

Step 1: Cut shape “U” pieces

We need 2 “U” pieces.

First, to conduct, you need to cut a wire with a length of 20 meshes, equivalent to nearly 3 times the length of the width.

Divide the wire segment into 3 parts and then use the prepared two-by-four board to bend into a U-shape with a 90-degree bend angle.

Once done, you need to compare the width of the wire with the edges of the “U” to ensure that the bends match exactly with the width of the wire.

Step 1: cut shape "U" pieces
Step 1: cut shape “U” pieces

Step 2: Cut shape the parlor

In the second step, you need to cut a wire 11 meshes long and cut off half of the mesh at both ends.

So after cutting the wire you will have a wire that starts and ends with half mesh and 9 meshes in the middle.

Continue, you need to use two x four. Place the 2-by-4 board across the center of the wire in the eye row of 5 then let it bend into a “V” shape.

Then shape the hole by cutting the wire between the three meshes.

Finally, stretch Parlor to look from top to bottom and see that it is square.

Cut a wire 11 meshes long and cut off half of the mesh
Cut a wire 11 meshes long and cut off half of the mesh

Step 3: Cut shape the entrance funnels

To be able to create the entrance funnel you need to cut the wire sap to form a trapezoid with 12 eyes at the bottom and 10 eyes above. Then curl and mold to form the complete funnel.

Step 4:Cut shape the bait-box

The weapon to be able to attract the crabs to find the crab trap is the bait box. And to create a priming box for your trap, let cut off a 25 mesh galvanized eelpot wire.

Then trim it back to create a square and curl it into a cylinder. Then fix it. The final is using the crab clips, squeeze the edge of one end together.

Step 5: Assembly of parts

After we have prepared all the crab trap parts we will reassemble them for a complete trap.

Piece “U” and Parlor

First, take one of the two “U” pieces and attach it to Parlor. Make sure the mouth of the “V” is exactly where the base of the “U” corresponds to the bottom of the eye. Do this by threading its ends through the edges of the “U” piece.

Then fix them using pliers to wrap the protruding wire ends around the Parlor onto the edges of the “U” piece.

– Install priming box

Measure the circumference of the mouth of the priming box (the end is not squeezed) and cut a central hole at the bottom of the “U” so that it fits.

After inserting the priming box, make sure that the squeezed end of the priming box touches the two V-shaped edges of the Parlor.

– Install the remaining U piece.

This process is quite easy, you just need to put the remaining piece of “U” on the piece U installed to create a box with a primer box and Parlor inside.

Similarly, fix them together by plucking the protruding wire ends so they stick together. Be sure to lift them firmly and not come out.

– Install entrance funnels

These are the things that take the longest time to build the trap but they are not too difficult.

Remember the entrance funnels you made in step 3?

Installing them is almost like installing the bait box, but instead of the bottom we will install it on the sides of the box and imagine that you are creating a gate that leads the crabs to the bait box. But they will get in and not get out.

Installing them is almost like installing the bait box
Installing them is almost like installing the bait box

Step 6: Reinforce the edges

Everything is almost done, right. The edge friend reinforces the edges to make your trap more secure.

At the edges of the unfinished, use a continuous length of 11-gauge smooth wire to re-frame the curvature to form 90-degree rotations. And don’t forget to leave a “hatch”.

Step 7: Attach ring and hook

Use the two culls installed in the parlor above diagonally opposite each other. And fixed the cull loop again

The same second cull will be placed at the opposite diagonal corner.

Attach the loop to the bungee cord on the top lip of the “hatch” and fasten with crab pot staples then attach the hook. That’s all.

You just finished your crab trap by yourself!

Attach the loop to the bungee cord on the top lip of the "hatch"
Attach the loop to the bungee cord on the top lip of the “hatch”

Crab trap using guide

When using this trap, everything will be so easy for you to catch the crabs you want.

First, you need to determine the type of crab you want. If it’s a rock crab, you need to make sure your material is really tough. Besides, you should also reconsider the entrance funnel so they can get in. You may also need to attach something to make it heavier and submerge underwater.

Then remove the bait that you have prepared into the bait box and drop them into the water you expect.

Usually, you will need to wait a time for the crabs to reach your cage.

When you find crab “bite” you just open the “hatch” and harvest.

So you’ve got more crab to eat for your dinner!


If you are dexterous enough and have the time to do it, DIY traps are truly a “champion” for you to save your budget. And it was really a very “crafted” experience like fishermen in the old days.

If this is not the case, however, you can still buy finely ready-made traps that are marketed.

Crab traps are not all there is to get you to catch crabs. But they will help you to make it easier to catch crab.

Hope what we share will be able to help you more!

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