Unprimed
70×35 70×45 90×35 90×45 140×35 140×45 190×45 240×45 290×45 90×90 115×115
Pre-Primed
66×30 66×42 90×30 90×42 138×30 138×42 185×30 185×42 230×30 230×42 88×88 112×112
Treated pine H3 and H4 refer to specific levels of treatment for pine timber intended for outdoor use, particularly in applications where the wood is exposed to the elements and potential decay or insect damage. These treatments involve impregnating the timber with chemicals to enhance its durability and resistance to environmental conditions.