Yes the the top strip is new 3/4 x 3/4 angle aluminum only 1/16" thick. I screwed it on the horizontal into the wood sub-floor that is in my Boler
There is Allure on the vertical.
I laid the table area first flooring first then left 1/4" around and back from the vertical step down. Then glued the Allure on the Vertical then slid a piece in under the counter and it didn't need glueing as it is held in place by the cabinet and trim. Then I laid the main floor again leaving 1/4" around which the old and new trim cover up nicely.
Re-using the old trim was an issue. As the Allure is floating floor, the old trim was held down with rivets through the subfloor and into the steel frame underneath.
So I inverted the trim and re-cut some angles and riveted the old trim to the sides which is steel. Its more work inverting with some angles not correct but the floor remains floating and at $10 for 4' of new Aluminum I went the frugal way.