If you want it to be believable/realistic, you should let the UV islands follow the wood grain so that it looks like two wooden boards:
Model was separated for better visualization
You did a good job unwrapping the model. Just forgot here the tiny edge to mark as a seam. In consequence, Blender couldn't make a straight UV island but a ring and this introduces distortion (might be not bad for the hole and the cut edges of the board).
The used texture is not seamless. That means if you place a UV island outside of the texture it wraps around and continues on the opposite side of the texture with a visible seam. If you don't like this you need to place the island completely on the texture.
If you move the island up there is no visible seam because the whole texture is used in one piece:
Of course, where UV islands separate there will be seams too. Seamless textures do not have this drawback but may have noticable repeating patterns.