When I apply a custom texture some faces are just black but others do have the texture

[Char7million]

I was trying to apply a wood plank texture to my rowboat but a lot of parts were just black how could I fix it? I tried applying the texture one face at a time but that didn't work.

[bruins757]

Did you use the UV mapping feature? If it doesn't wrap properly you would have to select faces from each of the axis and applied the UVs.

[Char7million]

Thank you I tried uv mapping and it worked