Sounds like a non-issue - ply comes in 4’x8’
sheets to begin with, so you’re going to have to piece the floor together anyway….
You can slice a thin strip off the edge of one panel so a holly strip is right on the new edge, and butt it up against a
teak edge, so the two look contiguous, and have the seam on the less-visible side of the area, or right down the middle if you have a rug down over it. Another possibility is to run a strip of contrasting
wood like mahogany right down the center, with teak/holly
panels mirrored outward, or border the center with two contrasting strips, with smaller pieces
outboard.
Matt