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Fins Unlimited Standard 10.5" Longboard Box White or White
10.5" Fins Unlimited Bahne Centerfin Box
The industry standard surfboard center fin box. Also known as a "Bahne Box" it's typically used in Longboards, Single Fin surfboards, Egg and Bonzer Shapes, and as a Stand Up Paddleboard fin box.
You can install a 10.5" center fin box in a quad fin setup to make it a "Versaplane" where the fin arrangements are endless...
You can also make your own centerfin router install jig templates below:
Print both pages full scale, tape together, transfer the pocket outline to 1/4"- 1/2" thick plywood
10.5" Center fin box router template for use with a 1/2" diameter router bit with 1/2" pattern bearing on top (page1, page2)
10.5" Center fin box router template for use with a 1/2" diameter router bit with 5/8" Outside diameter router collar (page1, page2)
10.5" Center fin box router template for use with a 1/2" diameter router bit with 3/4" Outside diameter router collar (page1, page2)