I've got myself a waterproof shed (eventually) that is a real bargain. Follow the instructions closely. Try to do it on a day with no wind of you are alone. Gloves help because there are some sharp edges. There's nothing heavy in any part of the shed.
Use a cordless drill/screwdriver, even a really cheapo one will be good enough. Have the torque setting (number on the dial) set low, everybody's tool will be different there, so that the screws bite but don't just spin because this will effect the waterproofing later. Magnetise the bit or buy magnetised tips or bit holders. A magnetiser/demagnetiser is a great item to buy and only costs a few pounds.
Make sure every screw or bolt that is on the outside has one of the little fiddly washers. When screwing 2 panels together and the instructions aren't particularly clear always make sure the bigger hole is the one the screw goes through first.
Get the ground as level as possible so the doors work properly and look neat. They are generous with the screws, nuts/bolts, washers, end caps etc so not like Ikea here. :)
The instructions aren't quite as clear as Ikea BUT backtracking after a mistake/misread is not too hard. Every item is marked, some with a sticker and some are stamped. If you have the space then it saves a lot of time sorting the pieces out by item code. The sticker isn't an indication of which way up you use the panel. I made the mistake of thinking if the writing is the right way up then that's the way to install the item.
My build is waterproof the doors close perfectly. I had to slightly bend back some of the edge trim that sits just outside the door, I think I caught these with screwheads or something. It looks extremely smart and is a nice wide doorway, the doors slide very smoothly. The holes for your lock are 1cm circles and they are 9cm apart. I haven't sorted out a lock yet. The only tools I used was my cordless drill with the screwdriver bit, 1 screwdriver a 7mm socket (easier than a spanner) 1 small hammer to tap the point protectors that stop you shredding your hands on the exposed screw tips once the build is complete. I wore gloves for some parts but I'm not good with tiny screws, nuts and bolts with gloves on. The nuts are really fiddly. If you put 2 nuts in the socket and gently spin it then the bolt will easily pick up the nut so you can tighten it, you'll see what I mean with a bit of practice.
One huge problem was that the top joint on the roof is only protected by a thin roll of tape. There is a trim above BUT it is so high above that you can easily put your hand between. This is not good enough an that's why I knocked a star off. Luckily I ha a tin or roof repair tar for a different job I need to do on my house. I tarred over the tape with a brush and got a strong waterproof seal that will last for years and years. If you buy that same tin then make sure you mix it really well as the lovely smelling resin floats to the top. ALSO wear gloves and clothes you don't mind getting manky because it's a messy job.
Give yourself a day to do it, get another person too. I'd have struggled on my own. The roof is near impossible alone AND I had to go off plan there. I couldn't do it in the order they give. My work platform and ladder were good BUT I'd have had to lean over a crazy amount to do it their way.
