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There has always been a debate about whether it is better to Scribe or Mitre your internal corners when doing Skirting or Mouldings. Now to me there is no argument, scribing is the way to go, however, some people obviously think mitring is easier but a scribed joint is just more professional and it demonstrated more pride in your workmanship and more professionalism. So the whole reason came about was because when we use natural timbers for our mouldings they are obviously going to shrink a little bit over time and when they shrink our corners will open up and we will get a gap. The Scribed Joint just shows or it helps to disguise that gap better than a Mitre Joint will.
So let’s have a look at them, this is a mitred joint a the moment and if I move these boards 1mm in either direction just to simulate a little bit of shrinkage on either board
you will see that quite a substantial gap opens up between the two boards. So they have only shrunk a millimetre away from the corner but obviously, that gives you a 2mm gap or more and it looks quite obvious.
So let’s compare that to a Scribed Joint, the same corner,
we are going to move both boards a millimetre each again and you can see from this angle there is hardly any difference.
If I move into the corner you can see that this board has shrunk 1mm this way and this one 1mm this way but because of the scribe you can’t see it from this angle in fact it’s not until you get right round sort of at 90 degrees to it you can start to see that gap open up.
So I hope that demonstrates why we scribe our internal corners rather than use mitres
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