I was also wondering, what kind of wood texture did you use for the 3D preview we see on your site? (I'm curious to see how my kitchen would look with wood texture instead of white.)

The Wood 003 texture from the AmbientCG texture library.
You can download the AmbientCG texture library here: https://github.com/fabien-michel/sweeth ... -ambientcg
Download the 256 or 512 library. A higher resolution is useless for Sweet Home 3D