Build a spiral staircase yourself

Hello, I would like to build or have built an outdoor spiral staircase myself. It should be made of concrete - and if possible with a child-safe railing. I live in South Africa, where building regulations are hardly or not at all observed, but of course I still want to build a safe and good staircase. Who can give me instructions or link me to them? Unfortunately, I found nothing about this on Google. Thank you!

Hello Jambo11,

pouring a spiral staircase is - with all due respect - not something for someone who needs instructions for it. Just making the formwork alone... My suggestion: Have a staircase made of precast concrete parts delivered; you might be able to assemble it yourself with a few helpers. Find helpers who have experience in construction. Everything else should be discussed with a supplier; type of installation, foundation, railing...