I've seen a home on TV that had combination wood and tile flooring. Specifically, large tiles were laid on the diagonal with wood pieces (perhaps 5" wide) laid between them creating a lattice-like pattern. I also saw a similar floor that used concrete instead of tile but with the same wood lattice pattern inlaid.

I need to know how you abutt the wood to the tile to allow for wood expansion. Do you use a flexible grout or what? I would like to do this installation on the flooring in my entry hall but not sure how to go about it.

Does anyone out there know? I've searched the web a lot but found little information that is helpful. Any and all advice is welcome. Thanks --- DP