Use an electric drill but don't push down too hard. The wood is not weak like particle board, but it's not that strong either and you could loosen the holes too much. Also, lay out the parts and fasteners first to make sure you're not missing anything. Mine came with all the parts plus a few extra screws and nails so I was pleased with that. You'll need a ladder for the roof or some way to elevate yourself to fasten the top. My husband is 5'7\", I'm shorter, and we needed to borrow a small ladder from his family. It took us all afternoon assembling it, maybe 3.5-4 hours? We took a break to get a quick bite in between. The finished shed feels sturdy, and won't easily topple over. It included anti-slip L-shaped pieces but we didn't install it since it's in front of our wooden fence (fingers crossed). Although, not sure if it'll withstand our moody midwest winter. Like I said, the wood doesn't feel that sturdy and I'm not sure of the weight limit of the roof either. It is sloped but not enough, and we get lots of snow so I'm curious if it'll handle days of heavy snow without warping. I'm still debating with my husband if we should leave it outside or move it into our garage, but we came to the consensus that once we get our first snow (a few months from now), we'll get our answer then. For now, in the summer and going into fall, I like it outside near my garden so I can store my gardening tools. Not big enough for a lawn mower or bikes, just the rakes, broom, shovel, and long lawn care tools like such. It hasn't rained yet but we used our hose to test the roof and nothing got wet or moist from it, so that's a good sign. The wood smells amazing. It looks very nice, but I want to stain it a darker color so it'll match more with our fence. That'll be a future summer project, maybe the kids can help with it as a family project. Overall, I'm pleased with this shed. Not sure about it being outdoors, maybe if you're in the south and don't get winters like us, but it is a very
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