China also applies a 17 per cent import value-added tax on sawn wood, but in some parts of China there was no tax on logs, the council said.
Mr Hilliard said while it was difficult to measure how non-tariff barriers affected Juken New Zealand's business, reducing them would definitely bring benefits.
"Non-trade barriers are a difficult thing to deal with and it's often hard to identify and quantify them."
"Any impediments to free trade when you have a free trade agreement is negative for us -- it's simply other countries manipulating the system for advantage."
Speaking at the ForestWood conference in Auckland last week, Wood Council chairman Brian Stanley said while Government had been focusing on reducing tariffs, there had been a steady growth in non-tariff barriers.
"When you look at all these interventions it becomes clear, from the point of view of our industry, that we don't really have a free trade agreement with China. Yes, the duty rates on our exports of raw logs are low, because that meets China's need for raw materials.
"But what about New Zealand's needs? We need to add value to logs by manufacturing high-value wood and paper products at home. Yet the free trade agreement with China does not address that need. From my standpoint it's all very one-sided."
The WTO had estimated the number of trade-restrictive measures in effect in 2015 was now around three times greater than in 2010, Mr Stanley said.
"Non-tariff barriers are only growing in number and costing New Zealand industry millions of dollars. We need the Government to pay urgent attention."
The free trade agreement with China is due to be reviewed later this year.