Need air compressor advice for building a backyard shed - what specs should I look for?

Hey everyone, I'm planning to build a 10x12 shed in my backyard this summer and want to upgrade to pneumatic tools. I've been using cordless stuff for years but heard air tools are better for big projects. What size air compressor should I get? I'll be using a framing nailer, brad nailer, and maybe a paint sprayer later. Budget is around $300-500. Any recommendations on brands or features to look for?

Hey OP! I built my shed last year with a Porter Cable 6-gallon pancake compressor - got it on sale for $250. It handled my framing nailer just fine, but I had to wait for it to catch up sometimes when I was really going fast. For your size shed, I'd recommend stepping up to at least a 20-gallon tank. Look at the DeWalt or Makita ones in your budget. Pro tip: get one with two quick-connect outlets so you can run two tools at once (like having your brad nailer and inflation hose ready).

Electrical considerations first: Make sure your circuit can handle it. A 20-gallon compressor typically needs a dedicated 15-amp circuit. Don't just plug it into any outlet - you'll trip breakers all day. As for specs, look at CFM (cubic feet per minute) more than tank size. Your framing nailer probably needs 2-3 CFM at 90 PSI. Get a compressor that delivers at least 25% more than your highest CFM tool. California Air Tools makes some good quiet ones if noise matters in your neighborhood.

Having restored dozens of old sheds and outbuildings, I'll echo what Mark said about CFM being crucial. But also consider future use - you mentioned painting. A small compressor might handle nail guns but will struggle with a spray gun. For versatility, I'd stretch your budget slightly for a 30-gallon vertical model. The upright design saves floor space in your new shed! Check used market too - I found a barely-used Ingersoll Rand for $400 last month. Just change the oil and drain the tank regularly.

Thanks everyone! This is super helpful. I didn't even think about the electrical requirements - my garage only has 15-amp circuits. Might need to run a new line. The CFM advice makes sense too. I'm leaning toward a 20-30 gallon now based on your suggestions. Anyone have experience with the Harbor Freight Fortress compressors? They seem to have good reviews for the price.