On Tue, 28 Jul 2009 01:29:38 +0100, John Rumm
wrote:


The standard chippies way is to stand the boards vertically with the
join overlapped, and then cut down through both with a hand saw at
something approximating 45 deg. The actual angle (or for that matter
even the straightness of the cut) does not really matter since they will
match perfectly. All you need do is ensure that a black line will not
open up as the board shrinks, and a board thickness of overlap when
finished is fine.

Thanks everyone, all the other posts seem to echo the above method, so
I'll give that a go. I can only buy up to 5.1m lengths locally and the
run is 5.3m ;(