In article ,
a wrote:
Our main concern is the joint at the ends of the boards (not the T&G
sides), getting these to have a good perfect fit. Is this something that
we can reasonably expect to do ourselves?

You can buy powered cut-off saws these days pretty cheaply from any of the
sheds - just make sure you get one large enough to cope with the width. It
might be called a compound mitre saw, but will do the same job. Just make
sure you adjust it accurately for a 90 degree cut, as most aren't that
good straight out of the box. You might also need a fine toothed blade if
it doesn't come with one.

--
*How many roads must a man travel down before he admits he is lost?

Dave Plowman London SW 12
RIP Acorn