Ultimate Vape Coil Building Guide 2020
Posted by vapecraft on Jul 28th 2026
In short: Building your own coils gives you ultimate control over your vaping experience. This guide covers the inexpensive tools you’ll need to get started and the key principles for building your coils safely and properly.
Coil building is an essential part of the vaping experience that has a steep learning curve. You’ll find that not many people know how to do it. In fact, more than three quarters of vapers simply buy new coils when they need to. Building your own is one of the most rewarding parts of vaping, however, since it gives you ultimate control over the whole process of vaping. Combining mechanical prowess and technical know-how is a must if you want to know how to coil build. To start, you’ll need a few cheap and easy to find items:
What you’ll need to get started
- A pair of miniature scissors similar to ones you see in hospitals is necessary.
- Tweezers, a screwdriver, and needle-nose pliers.
- An ohm meter, which is a device you can pick up for relatively cheap at the local hardware store, is a critical component.
- Kanthal wire and wicking material like cotton will round out the components you’ll use when building your device.
Building your coils
A plethora of articles on the specifics of doing this exist online, but knowing that, it’s imperative to build your coils properly; being the first thing you should know. Because everything in a device runs on the basic principles of physics, overloading the capacity of your new coil build is a very real possibility. If you build a coil with little resistance, there’s a high chance that your battery will blow out.
Therefore, that previously mentioned ohm meter is absolutely necessary through every step of the process. Test the resistance of your coil before you power it, and make sure to calculate the current draw of your coil. Double check all of your calculations before you use that coil for the first time.
With that said, once you’ve made your coil and have made sure it’s safe to use, the experience is unbelievable. You’ll produce clouds even bigger than before due to the freshness and tightness of the coil. Even better, with some experience you can easily tweak the coil to match your vaping style exactly, pairing your pulls with the exact amount of power to create a holy alliance of vapor.
Once you get the hang of coil creation, it becomes quite fun. Of course, it’s significantly cheaper than buying new coils every time it’s necessary. The individual parts come in such large quantities that you don’t have to buy them very often, so your vaping sessions will be interrupted far less often than before.
All in all, building your own coils will enhance your vaping experience far more than you ever thought it would. Want to build like a pro?
Understanding wire types and gauges
The wire you choose defines how your coil behaves. Kanthal is the traditional starting point: it is inexpensive, holds its shape well when you wrap it, and is forgiving for beginners, but it only works in wattage mode. Nichrome heats up faster than Kanthal and gives a snappier ramp-up, though it is slightly softer to work with. Stainless steel is versatile because it runs in both wattage and temperature-control mode. Nickel (Ni200) and titanium are strictly temperature-control wires and must never be used in wattage mode.
Gauge matters just as much. Wire gauge runs backwards from what you might expect — a lower number means thicker wire. Thicker wire (say 22 or 24 gauge) has lower resistance per inch, holds more heat, and takes longer to warm up. Thinner wire (28 or 30 gauge) has higher resistance, heats quickly, and is easier to wrap neatly. Most beginners find 24 to 26 gauge round wire the easiest place to start.
Beyond simple round wire there are braided, twisted, Clapton, and mesh builds. These increase surface area, which generally means more flavor and vapor, but they also lower resistance and demand more from your battery. Save them until your fundamentals are solid.
Ohm’s law and knowing your limits
Coil building is the one area of vaping where a basic grasp of electrical theory is genuinely a safety requirement, not a nice-to-have. Ohm’s law describes the relationship between voltage, current, and resistance: current equals voltage divided by resistance. In practice this means that the lower your coil’s resistance, the more current your battery has to deliver.
Every battery cell has a continuous discharge rating (CDR) measured in amps. Your build must draw less than that rating, with margin to spare. Before firing any new build, calculate the current draw for your coil resistance at your battery’s fully charged voltage, and compare it against the cell’s CDR. If the numbers are close or over, build to a higher resistance instead. This is absolutely critical on unregulated mechanical mods, which have no protective circuitry whatsoever.
Always check your finished build’s resistance on an ohm reader or a regulated mod’s resistance display before use. A reading that differs sharply from what you expected usually means a short or a bad connection — find out why before you fire it.
Wicking, testing, and breaking in a new coil
A perfectly wrapped coil still performs badly if the wicking is wrong. Cotton should pass through the coil so that it fills the space without being compressed, and the tails should reach the juice channels without being crammed into them. Too tight and liquid cannot reach the coil, giving dry hits; too loose and the tank leaks. Prime new cotton by dripping liquid directly onto it until it is visibly saturated.
Before wicking, pulse the bare coil at low power and watch how it glows. You want it to heat evenly from the centre outward. Hot spots — sections that glow first or brighter — usually mean the wraps are touching or the coil is not seated squarely. Gently strum the coil with ceramic tweezers while pulsing to even it out. Never squeeze a coil with metal tweezers while the device is firing.
Troubleshooting common coil problems
A burnt taste almost always points to wicking that cannot keep up, either because the cotton is packed too tightly, the liquid is too thick for the build, or you are chain-vaping faster than the wick can resaturate. Reduce your wattage, wait longer between draws, or rewick with a looser pass.
Leaking is usually a wicking or seal issue: too little cotton, tails that do not properly cover the juice ports, or a worn o-ring. Weak flavor often means the coil is running below its ideal power range, or the airflow is too open for the build. Spitting and popping typically come from over-saturated cotton or too much liquid pooled in the coil — fire a few short pulses to clear it.
If a build ever reads a dramatically lower resistance than intended, do not fire it. Disassemble, inspect for wire touching the deck or the wraps shorting against each other, and rebuild. When in doubt, start over; a fresh build costs pennies and a battery failure does not.
Frequently asked questions
Why build your own vape coils?
Building your own coils gives you full control over resistance, flavor and vapor, and it can save money over time. Most vapers just buy replacements, so building sets you apart.
What tools do I need to build coils?
You need only a few inexpensive tools, including resistance wire, a coiling rod or jig, wire cutters, tweezers (ideally ceramic), cotton wicking material and an ohm reader.
Is coil building safe for beginners?
It can be, but it has a steep learning curve. Always check your build with an ohm reader and understand battery safety and Ohm’s law before firing a coil, especially on unregulated devices.
How do I check my coil before using it?
Install the coil, use an ohm meter or your regulated device’s resistance reading to confirm it matches your expected build, check for shorts, then pulse gently to seat and evenly heat the coil before wicking.
