10.5" Fins Unlimited Bahne 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...

 

This 10.5" Center fin box is installed after the seal coat using the Longboard Center fin Router Jig Install Kit

 

Specify Black or White color when ordering

Dimensions: 10.5" long x 1" deep

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)