I'm planning on installing some maple flooring in my master bedroom and looking for layout advice.

First of all, here is my layout (master is the room in the upper right):


The breakfast room currently has character/natural maple running E-W and the floor joists are running N-S. The joists are engineered beams, 16 oc, with 23/32 Advantech OSB as a subfloor.

Here is a pic of the transition I'll be dealing with:


I'm trying to match the current floor as best I can, but since it won't look identical, I'd prefer to run the new floor at a 90 degree to the current one. Is my subfloor good enough to get away with this? I'm open to any other suggestions to make this transition look as good as possible.

Thanks,
Jason

That sub floor looks like particle board. The existing maple looks like 3 1/4" maple or more. Subfloor looks flush with existing floor, if so, tear it out.

If it were my floor, or a customers floor and I was going to put down wood that wide(especially maple) AND my existing subfloor was OSB. I would replace the subfloor with CDX, matching it up with existing subfloor(under existing maple). I would then mark all the joists with chalk line, so I could aim for the joists. I would lay the maple flooring at a 45 DEGREE ANGLE. NEVER WITH THE JOISTS (unless you have 1 1/2" thick sub flooring).

OR, I would run the wood the same way as existing maple floor. Starting at that wall to the right and matching the seams using plenty of heavy adhesive to keep expansion and contraction their to a minimum. I might even use a different species of wood for the transition.

OR I would patch and stagger into existing floor, keeping it all the same. This WOULD be my personal preference.

Chapter 9 – Solid Strip & Plank Flooring Installation
Copyright 2007 National Wood Flooring Association 12 REVISED APRIL 2008
Part VI – Solid Strip & Plank Installation Methods
A. Always follow the manufacturer’s recommended installation procedure.
B. Unfinished and factory-finished solid strip and solid plank flooring should be installed
perpendicular to the joists or on a diagonal for any single layer subfloor. (Exception: Over
diagonal, solid subfloor boards, install perpendicular to joists or subfloor direction.)
C. When ¾" solid strip and solid plank flooring is laid parallel with the floor joists, follow one of
these two steps:
1. Add a layer of minimum nominal ½" (15/32”) CD Exposure 1 (CDX) plywood
underlayment to the existing subfloor (as previously recommended)
2. Or brace between truss/joists in accordance with the truss/joist manufacturer’s
recommendations and with local building codes. Some truss/joist systems cannot be
cross-braced and still maintain stability.

These are the guidelines the NWFA recommends and most Mfg's but check the installation guidelines from the mfg you have purchased the floor from.