Just a little job today sorting threshold between bathroom and bedroom out. Cut out architrave with multi-tool to accommodate new height. Used a tip I picked up on youtube where you use a scrap of the same material as a height guide/rest for the multi tool, get some great tolerances this way!
Ripped a section of 18mm plywood to size. Marked up cuts in situ and jigsawed it to final size.
Test Fit went OK but had an 8mm deviance in height from left to the right. Cut out a bit more architrave on right side to give some additional upwards movement and used packers to level with the tiled floor.
Once happy dug out and dusted off the router table and ran a round off bit on the exposed edges. Packers prevent glue and nailing so threw some 5x50mms in and filled afterwards.
Drilled holes for the aluminum threshold, cut to size and installed.
Pretty happy with the result!