PlasmaDan's Security Shed Build This was a side project to my DIY cinema build (here). Prior to starting my cinema build I had acquired a lot of tools & equipment, most of which was kept in the room while I was working on it. About half-way through the project I had to level the floor which meant clearing-out the whole room of everything, including my collection of tools. I don't have a secure garage or safe place to store my tools, and I certainly wouldn't keep them in a cheap wooden shed. So, I decided I was just going to have to build a secure shed myself. I know I went WAY overboard on security for this project, so bear that in-mind. I decided that any "security shed" really ought to be framed using steel not wood (for obvious reasons). It must be able to withstand attack from a would-be burglar, but not look like anything particularly special from the outside, so as to not draw attention. I thought for a long time about how a burglar might break into a shed, and how I could prevent it. The Plan I drew-up a 3D model of what I wanted to create while I was working on the cinema build. I only have a small back-yard, so I couldn't have anything too big. The dimensions I came-up with were based on the size of my 26" Stanley toolboxes, space for larger items such as my Makita mitre saw, and the width of the concrete platform where the old shed used to be. I used the 3D model to create some 2D plans to be used for reference while working on the steel frame. The steel I chose was 25mm (1") square 2.5mm thick box-section. I sourced the steel from a local steel supplier. Based on the CAD drawing I worked-out I needed around 110 meters of steel, I managed to get 15x 7.5m lengths (112.5m) for £100 + VAT. Who knew steel was so cheap? My father is a mechanic, so I have access to a garage, welding equipment etc. The shed is designed to be flat-packed for easy transport, so each section needs to be bolted together from the inside of the shed. The first step was creating the outer frame and bolting it together... Once the basic outline frame was done, I could start adding the bars. For this I needed lots of repeat cuts, so I clamped multiple lengths of steel together and cut them using my Makita DCS550; a metal cutting saw which cut through all this steel with very little effort. After a few days, I had a rather ominous looking, but very secure steel cage. I used some wide-throw stainless-steel hinges for the door. These must be wide-throw to allow the door to clear the plywood / cladding on the outside of the shed. Could the moderators look into allowing more than 20 images per post? Maybe allow more for active members or something? 20 just isn't enough for the DIY section.