Which sander for a 12x16 deck? Need advice on orbital vs belt

Hey guys, tackling my first big deck refinish this spring. It's a 12x16 pressure-treated pine deck that's about 5 years old, never been sanded. I want to strip the old stain and get it smooth for a solid stain. I've only used a cheap palm sander before. Should I get a random orbital or a belt sander? I'm looking at the DeWalt DWE6423 or a Makita belt sander. Budget is around $150. Any tips?

For a deck that size, a belt sander is gonna save you a ton of time but it's easy to gouge if you're not careful. I'd actually recommend a random orbital sander with a hook and loop pad and some 60-grit to start. Get the Bosch GET65-5 or the Makita BO5041K. They're a little over your budget but you'll use it for years. Plus, you won't have to worry about sanding through the wood. Also, rent a drum sander for the deck boards, much faster and you can return it.

I've restored a bunch of old decks. If it's just stain and no paint, orbital is safer for a newbie. But if there's any old paint or heavy weathering, a belt sander with 80 grit will cut through it. Pro tip: always sand with the grain, and use a dust mask! Also check for any loose nails - set them below the surface or you'll tear your paper. For that budget, I'd say get the Dewalt orbital, it's solid and you can get sandpaper cheap online.

Thanks guys! I think I'll go with the DeWalt orbital based on what you said. I'm not comfortable with the belt sander yet. Also, any advice on what to use to strip the old stain first? Should I use a chemical stripper or just sand it off? The old stain is a solid color, not transparent.

If it's solid stain, you can usually just sand it off if it's not too thick. Start with 60 grit then move to 80. But if it's peeling or really thick, use a stripper like Citristrip. Apply with a cheap brush, let it sit for an hour, then scrape with a plastic scraper (don't use metal or it'll gouge). Then wash the deck. Let it dry a couple days before sanding. That's the pro way. Good luck!