Just one object, one mesh, one layer, no groups.
This model contain 100% quads, 0% tris, and 0 n-gons.
It is subdividable since it has holding edges where they are needed.
UVs are all oriented along the wood texture veins so any other custom wood texture will make the object follows that veins.
The model is centered on x and z axis, and on the positive y axis (ready to be positioned on any floor)

Texture resolution: 2048x2048 pixels

Units: cm

Dimensions (Real World Scale):
Width 28.558 cm
Height 59.100 cm
Depth 28.558 cm

Preview images were rendered using Mental Ray and four lights