1105 Lake Street, Baraboo, WI 53913

Sizes & Colors

Our selection of in-stock and special order cores include white and dura cores.


Northcore custom plastic cores are primarily plastic solid-wall cores and 3" ID Keyway cores. We don't supply multi-wall cores or cores greater than 8" diameter. We also don't supply paper, composite or metal cores. We have capability to cut and machine all cores except paper (contamination issues) for a rigid plastic core.


Our standard core sizes are 1", 1.5", 1.75", 2", 3", 4" and 6" inside diameter with different wall thicknesses from light duty to heavy duty. We also supply custom core cutting of all sizes to any length with precision cutting tolerances to +/- .005" for many lengths.


Our standard cores are white or natural but we offer black, red, green, yellow and blue in limited sizes. We can also color match any color, but special colors are only available with lead times of 4-6 weeks.