Arthur2 wrote:

I will be butting together two lengths of sapele/mahog.
The individual pieces are about 22mm x 140mm and 1040cm long...and joining
them on the long edges to make 260mm wide panels.
Should I buy a jointing router bit or can I get away with using biscuits.
Once they are joined i will be fielding them.

You don't need either...just glue should be fine. You can certainly use
biscuits for alignment, but they don't help at all as far as strength of
the joint.

Chris