The purpose of this study: a) to determine the characteristic parameters the forest roads network, such as: density forest roads, spacing forest roads, average distance skid trails, correction factor and quality forest opening area; (b) calculate the percent openness forest land due to activities making main roads network, branch roads, skid trail and TPn. The location research in block harvesting RKT 2018 at IUPHHK-HA PT Sindo Lumber Central Kalimantan. The results showed density the forest roads network ranged between 7.96 – 17.66 m/ha, 1256.28 m main road spacing, 1097.69 m branch road spacing, 566.25 m skid trail spacing, 146.5 m average distance skid theoritical (REo), 186.83 m REm and 252.30 m REt. The correction factor value of...