I ordered up a pair of replacement sills and long sills / oversills have arrived. I'm still going to do a proper job by taking out the originals, but wondered whether to fit these as they are or cut them down to normal length.
to the untrained idiot (me) if I fit the complete long sill; theres more metal, thus should be more strength added by doing this.
Am I correct in this assumption?. Obviously I'll take pics to prove i've not just done a bodge job over the top. whats the concensus among those more knowledgable than I?