Razor Wire – Barbed Wire Installation. Get your job done from professionals only. All Our Work has 100% Guarantee. Very Competitive Prices. We would like to take you through a step by step process of our concertina razor wire installation. Now, before we start with the installation there a couple of points that we take care of. Placement of the material – The material can be installed either on the ground or on the top of an adjoining pole, on the fence or against the fence. Each type of installation would be unique. Spacing of the coil – Measure the space between one clip and the adjoining one. This determines the spacing between the coils. Usually a spacing of 12” is done with a plus or minus of 2 inches variance. Hence consistency is the key. Attachments – Usually concertina wire is attached every four feet to the adjoining role and on every foot to the fence. It can be attached with stainless steel rebar ties or with hog rings. Rebar ties generally reduce any vibrations but it does take a little longer to install.