Plano 3700 Tackle Box Inserts

🧰 Plano 3700 Tackle Box Inserts

Unlock hidden space. Double your storage. Stay organized.

These inserts are designed to fit both old and new Plano 3700 series tackle boxes, transforming unused dead space into functional storage. With a 2-piece stacking system, you can effectively double your tackle capacity without changing your box.

🔧 Features

• 🎯 Universal Fit – Compatible with both old and new Plano 3700 tackle boxes
• 📦 Maximize Dead Space – Turns unused vertical space into usable storage
• 🧱 2-Piece Stackable Design – Double your storage capacity in the same footprint
• 🧩 Modular System – Mix and match insert sizes to suit your gear
• 🎣 Versatile Storage – Great for terminal tackle, hooks, weights, swivels, spoons, jigs, and more
• 🔄 Keeps Original Functionality – Designed to still work with your tackle box divider slots if needed

📐 Sizing System

The Plano 3700 box is divided into 6 units total, and these inserts are designed to match that system:

• Size 2
• Size 3
• Size 4

🧩 Combine any configuration of sizes to total 6 units
→ Example: 2 + 2 + 2
→ Example: 3 + 3
→ Example: 4 + 2

Customize your layout depending on your fishing style and gear.

🛠️ Setup

• Drop inserts directly into your tackle box
• Stack the second layer on top for added capacity
• Mix configurations to match your tackle setup

🧵 Print Notes

• No supports required
• Print multiple sizes to build your ideal layout
• PETG or PLA+ recommended for durability
• Use higher wall count for strength on thinner dividers

🎣 Why You’ll Love It

Stop wasting space in your tackle box. These inserts let you carry more gear, stay better organized, and adapt your setup for any fishing situation—all without upgrading your box.