Shiplap Lining Board 138 x 17mm in Clear Pine. Reversible Smooth or Sawn Face Finger Jointed Treated Pine Posts GL8 H4 CCA 88 x 88mm, 112 x 112mm, 135 x 135mm. Shiplap Lining Board 138 x 11mm in FJ Pine Primed. Reversible Narrow or Wide Shiplap Face. Shiplap Lining Board 138 x 11mm in FJ Treated Pine Primed. Reversible Narrow or Wide Shiplap Face.