>
>> I have an 8" x 8" beam which needs to be shortened for a mantle. What is
>> the best way to cut it and still end up with a reasonably square surface?
>> It seems that it wouldn't be controlled well enough using a band saw, even
>> with two people and a conveyor stand.
>
>Japanese style hand saw after laying out the lines of the cut on three
>sides. Take your time. Then, if required, a good low angle block plane.
...believe it or not, a chain saw will do the trick nicely, takes some practice, though...but I'd probably just use a Skillsaw all the way around and hand saw the remainder, belt sander to clean it up...carefully.
cg