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 (, )

10.5" Center fin box router template for use with a 1/2" diameter router bit with 5/8" Outside diameter router collar (, )

10.5" Center fin box router template for use with a 1/2" diameter router bit with 3/4" Outside diameter router collar (, )