I get the urge to keep things simple, but I’ve seen a lot of folks regret not running a bigger line when they had the chance. Upgrading later can be a pain—trenching, permits, all that. Even if you don’t need a Tesla charger, a 40A subpanel gives you options down the road. It’s not always about what you need now, but what might make sense if your needs change or if you ever sell. Sometimes overthinking is just planning ahead...
I get the logic behind future-proofing, but honestly, sometimes bigger isn’t always better. Oversizing can mean higher material costs and more hassle with code compliance. If you’re just running lights and a few outlets, a 20A circuit might be plenty. I’ve seen folks run huge lines “just in case” and never use the extra capacity... ends up being money and effort wasted. Just my two cents.
Totally get where you’re coming from. I’ve worked with clients who wanted to “future-proof” everything, and next thing you know, we’re staring at a breaker box that could power a small village. Here’s my take—figure out what you’ll actually use, maybe add a little wiggle room, but don’t go overboard. If you’re just lighting up the space and plugging in a few things, 20A is usually fine. Unless you’re planning to install a kiln or a car lift down the road, no need to stress about massive upgrades. Save the budget for something fun, like better lighting or storage.
I get the logic behind not overdoing it, but I’ve seen a few folks regret not going a little bigger with their electrical. You said,
If you’re just lighting up the space and plugging in a few things, 20A is usually fine.
That’s true for basic setups, but I’ve had clients who started with “just a few things” and then wanted a mini split, or a second fridge, or even just more power tools. Suddenly, that 20A feels pretty tight. It’s not about building a power station, but sometimes a bit more capacity saves headaches (and money) down the line.
I’d rather see someone run a 30A or 40A subpanel if they’re already trenching and pulling wire. The cost difference isn’t huge, and it gives way more flexibility for future changes. Just my two cents—sometimes “future-proofing” isn’t as overkill as it sounds.
Totally get where you’re coming from. I’ve seen a few folks kick themselves for not going bigger, especially once they start adding stuff like a mini split or a welder. That “just a few things” list always seems to grow.
sometimes a bit more capacity saves headaches (and money) down the line.
That’s been my experience too. The price jump between 20A and 40A isn’t wild, especially if you’re already digging a trench. I guess my only hesitation is overkill—like, is there a point where it’s just wasted money or effort? Or is it pretty much always worth it to go bigger if you can swing it? Curious if anyone’s actually regretted going with a 40A panel, or if it’s just peace of mind.
