Deck build - angle grinder vs. circular saw for cutting composite decking?

Hey guys, I'm about to start building a deck with composite decking. I've got a circular saw but I'm thinking about getting an angle grinder with a diamond blade for cutting the boards. Any recommendations? I want clean cuts without chipping. Also, do I need to worry about dust? I'm working in the backyard.

For composite, I'd go with a circular saw with a fine-tooth blade, maybe 60 teeth. But if you're set on an angle grinder, get a good one like Makita or DeWalt with a diamond blade. Just be careful, they can be aggressive. And yeah, dust is a big issue - use a vacuum attachment or work in a dust-controlled area. I've used a grinder with a dust shroud and it works but it's messy.

I've used both. For clean cuts on composite, a circular saw with a carbide-tipped blade is hard to beat. But if you're also cutting metal for the frame, an angle grinder is essential. I have a DeWalt DWE402 and it's powerful. Just make sure to use the right blade and take your time. Also, consider a track saw if you have the budget - it's even cleaner.

Whatever you use, wear a respirator and eye protection! Composite dust is nasty. And for the angle grinder, make sure the guard is on and you use a proper handle. I've seen too many accidents. Also, if you're cutting outside, be aware of where the sparks and dust go. Might want to set up a cutting station to keep the mess contained.

Thanks for the tips! I think I'll rent a circular saw with a fine blade and also pick up an angle grinder for the metal flashing. I'll definitely get a dust collector for it. Appreciate the safety reminders, SafetySteve. Now, any specific brand recommendations for the grinder? I'm looking at the Bosch GWS8-45 or the Ridgid R1006.