I would leave the existing part of the stair untouched and cut the architrave.
Fit a bit of trim with filler to the top of the stringer to avoid replacing the whole strip.
It's not that clear but you could remove a bit of the unpainted timber to allow relatively thin sheet material to continue the architrave - possibly adding some packing on the LHS?
Or just use something like 12mm to create a small upstand /block that looks like a design feature- i.e. Sticking out
Also if you can't replicate the trim on the top of the stretcher, because it's a small area, you could shape something close and sand it to blend in
It's not that clear but you could remove a bit of the unpainted timber to allow relatively thin sheet material to continue the architrave - possibly adding some packing on the LHS?
Or just use something like 12mm to create a small upstand /block that looks like a design feature- i.e. Sticking out
Also if you can't replicate the trim on the top of the stretcher, because it's a small area, you could shape something close and sand it to blend in
Not a decorative 'architrave ' block but what I would call a plinth block ,which look best at the junction of skirting with architraves anyway in my oinion , and would work at junction of stair string with architrave.
The thing Tiger was talking about is known as a plinth block/architrave block and was commonly used to cover the inevitable difference in thickness of the architrave and skirting board where they come together; usually a bit taller than the skirting board, and a little wider than the architrave.
he thing Tiger was talking about is known as a plinth block/architrave block and was commonly used to cover the inevitable difference in thickness of the architrave and skirting board where they come together; usually a bit taller than the skirting board, and a little wider than the architrave.
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