door frame (for garage door)
what make of garage door are you fitting,if a torsion spring do not use a
half lap joint as they are too weak.a through and through mortice and tenon
is normal.
You can buy ready made frames in timber.if installing timber a piece of
slate under the frame stops any water
Or if a new door pay a little extra and have a metal frame door comes
prefitted and it makes installation much easier.
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