Smooth and grooved terrace board made of thermoash-ash on metal joists with fastening. Width of boards is 160 mm technological gap is 7 mm. Analogue https://3dsky.org/3dmodels/show/terrasnaia_doska_na_lagakh_4_vida_2  Black color
Layout without offset about 4000×5000 mm
Layout with offset about 4800х5000 mm
Layouts on one side have a straight line on the other side with a rounding. http://www.termo-wood.ru/production/deking-terrasnaya-doska/ 
For different elements of the elements multi material with hue correction is used. The archive material textures files 3ds max 2011 vray and corona.