The P1 paper size has dimensions of 560mm x 860mm, which converts to 22 inches x 33.9 inches. This gives the P1 size a total surface area of 0.48 square meters. The P1 paper size was defined under the Canadian CAN 2-9.60M paper standard as the largest of the P series of sizes, and is very similar to the US ANSI A standard paper size. The P1 size has also occasionally been referred to as PA1. Due to its large dimensions, the P1 size is suitable for uses that require a lot of space, such as posters, large brochures, presentations, graphic design, and engineering and architectural plans. The P1 dimensions are convenient for exporting larger printable areas. Overall, the P1 Canadian paper size serves well as an oversized format for documents and projects needing generous space.