The 25mm starter trim, or J trim, fixes to the wall and takes the back edge of the soffit board. It gives the board something to sit in at the wall end and closes the gap where soffit meets brickwork.
 
Fit it first, level, then run the soffit into it. Get the J trim straight and the whole underside follows. Supplied in 5m lengths.
 
A note on lead time. Irish Oak is a special foil rather than a stock colour, so most branches bring it in rather than holding it on the shelf. Allow 3–10 working days. Order the whole elevation together and it all lands at once — it is piecemeal ordering that causes the wait.
 
Key Features
✔ Carries the wall edge of the soffit board
✔ Closes the gap at the brickwork
✔ Fit first and level — everything follows it
✔ 5m lengths, Irish Oak woodgrain foil
✔ Colour-matched to Eurocell Irish Oak soffit and fascia