Hi all – I'm looking for help sourcing a 3.5" to 4" engineered white oak flooring product (to go over radiant heating).

We are looking for clear or select grade rift and quartered, with longer board lengths (minimum 3ft, preferably 4ft), and are open to either site-finished or pre-finished (with preference for pre-finished given sky rocketing labor costs where we live).

We're investigating products from both @Graf Brothers Flooring and @Uptown Floors, but would love help on another other vendors that we might want to look at.

It seems most folks who do pre-finished engineered hardwood start at 5" wide boards (which we like ok, but would really prefer slightly narrower). So far, the closest we've come to what we want is a 5" prefinished @Coswick (Vanilla finish) which is a good backup... but we're hoping we can find exactly what we want.

Thanks in advance!