Deck build saw advice - circular or miter?

Hey everyone! I'm planning to build a 12x16 deck in my backyard this summer. I have a basic circular saw (older model) but I'm thinking of getting something better. Should I invest in a miter saw for the cuts, or can I get away with a good circular saw? Also, any recommendations for a durable saw for pressure-treated lumber? Thanks!

Welcome to the forum! For a deck, a circular saw is your workhorse. I've built dozens of decks with just a circular saw and a speed square. A miter saw is nice for crosscuts, but you can do those with a circular saw too if you use a guide. Since you're cutting pressure-treated, make sure to use a blade with carbide tips, at least 24 teeth, and keep it sharp. If you're set on a new saw, I'd recommend a cordless circular saw with a 6 1/2" blade - the Makita or Milwaukee are solid. But don't overlook a good saw guide for straight cuts.

I agree with Steve. I'm a weekend warrior and built a small shed with just a circular saw. For the deck, you'll be rip-cutting long boards and doing crosscuts. A miter saw would speed things up, but you can manage without it. If you do get a miter saw, get a 12" sliding compound miter for wider boards. But also, make sure your blades are meant for treated wood - they dull regular blades fast. Oh, and wear a mask - that dust is nasty!

For a project like this, I'd say get a track saw if your budget allows. They give you perfect straight cuts every time, which is crucial for deck boards. But if not, a decent circular saw with a straight edge will work. I've seen too many DIYers struggle with wavy cuts on decking - a track saw eliminates that. But if you're just doing a basic deck, maybe just rent a miter saw for the day? Or borrow one from a neighbor! For the circular saw, look for one with a brake and good bevel capacity. Hope that helps!