@maggiemae Tongue and groove it is. No, no flash - I used tone balancing to get the feel how I wanted it and and then refined the tonal range by adjusting the colour slider appropriate to a particular grey shade - all done in Lightroom.
@madeinnl@joysabin Thank you both - the composition would have better balanced had I moved the top double plank and leaned at an angle against the bottom three... hindsight is wonderful!