79pt Chipboard Covers

Do not assume that a desktop punch can process board this thick. Punch capacities are usually stated for standard paper and may be much lower for dense cover materials. Forcing 79pt chipboard through equipment that is not rated for it can produce incomplete holes, damage the dies, or strain the mechanism. A safer approach is to order the correct prepunched pattern when available or use equipment specifically designed for heavy cover stock. The hole pattern must match the chosen comb, wire, coil, or other binding method exactly. Confirm the punch style, sheet orientation, and binding edge before ordering. When testing is possible, use a scrap cover and inspect every hole for clean edges and consistent alignment before processing finished material.

Match the cover to the finished sheet size and decide whether the edges should align exactly or extend slightly for added protection. Letter size paper normally uses a letter size cover, while index allowance, oversize, legal, square, and international formats need their corresponding dimensions. Measure trimmed documents rather than relying on the original paper size, especially when material has been cut after printing or laminating. Available dimensions are grouped under chipboard covers by size, making exact sizing easier to follow. Also account for tabs that extend beyond the text block. A cover that is too small leaves edges exposed, while one that is unnecessarily large may interfere with storage, shelving, or the movement of the binding spine.

Store chipboard flat in a dry, stable area and keep it protected from moisture, direct heat, and heavy pressure on one edge. Thick board can still bow when it absorbs humidity unevenly or rests upright without support for long periods. Keep unopened packs on a level shelf and return unused covers to protective packaging after production. Avoid placing them directly on floors or near exterior walls where temperature and moisture may fluctuate. During assembly, stack finished covers squarely so corners do not bend. If the material arrives with a slight curve, allow it to rest flat before punching or binding. Proper storage preserves alignment, makes punching more consistent, and helps the finished document sit evenly after the spine is closed.

Black chipboard can provide a more finished, uniform appearance when the natural brown surface does not suit the document design. It works well for reports, portfolios, presentation books, and materials where the cover should feel substantial without showing the raw board color. For a darker finish, black chipboard covers provide rigid choices in several sizes. Confirm the thickness because black chipboard may not match the 79pt target exactly, and the added depth affects the required binding diameter. The front and back covers must also match the text sheet dimensions and punch pattern. Natural brown remains useful for a simple recycled look, while black emphasizes presentation and visual consistency.