About Us

A division of Cincinnati Dowel & Wood Products Co.

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Northern Plug is a division of Cincinnati Dowel & Wood Products, which has been manufacturing wood products since 1925. We specialize in producing plugs that are larger than those typically used in the flooring and furniture industries. Some examples include barrel bungs for distilleries and cooperages, tube ends for mailing and shipping tubes, insulation plugs, and firework mortar plugs.

Although the Northern Plug division is relatively new, Cincinnati Dowel & Wood Products has been manufacturing larger diameter plugs for the better part of a decade. However, over the last few years, Cincinnati Dowel has been rapidly expanding its plug manufacturing department to the point where we felt it needed its own division. Northern Plug and it's parent company now supply bungs and other large diameter plugs to distilleries, cooperages, and other types of companies all over the world.

While there are many uses for large wood plugs, or bungs, the vast majority find their home plugging a hole in the side of a white oak barrel aging in a warehouse. So, after numerous customer requests, we decided to explore the possibility of manufacturing the other wood products frequently used by distillers and coopers. After much research, design, and fabrication, we developed machinery to produce the highest quality wood wedges and spiles which are used to prevent barrel leaks. 

We are continuously working to develop new machines to produce the highest quality products in the most efficient way possible. All of our products are made in the United States with raw material that is harvested in the United States. Our attention to detail and excellent customer service has enabled us to emerge as the premier bung supplier throughout North America.