Different spiral strengths according to number of pages for wire binding
Wire or spiral binding is offered in seven different strengths, or sizes, according to the number of pages. The spiral diameters range from 6 mm to 22 mm. However, the maximum number of pages is also based on the weight of the paper used.
Here, more sheets of 100 g/m² paper fit into the spiral than 120 g/m² paper. If you need to bind more than 200 pages with wire binding, we would recommend double sided printing. That way, up to 400 printed pages, or 200 pages, fit into wire binding/wiro binding.