In article ,
says...
Could all you creative minds out there help me make some internal window
shutters? The drafty windows are set in 2ft thick stone walls and are all
sorts of shapes and sizes. I would like them to be solid not louvred, in
keeping with the old look of the house. I really can't spend much on them
though, and while my joinery skills/ tools might be fairly basic, I've done
wonders making cupboard doors and boxing in open plan stairs with left over
laminate floor boards so don't mind trying to make cheap rubbish look ok. I
was wondering about using those mdf vertical panelling sheets as I quite
like that look. Or just plain panels of mdf/ cheap wood would maybe be
cheapest - or.........???

If you can cut a straight line in MDF you can make quite effective
panels simply by gluing strips of 6mm MDF onto both sides of a sheet of
6mm MDF. Smooth the edges, slap on a few coats of paint and nobody need
know that they aren't "real". If you have a router you can tart them up
a bit by chamfering or moulding appropriate edges.