This is an economic question. There are efficiencies that are achieved with certain spans, with certain products, and that's true of all products or materials. If you're asking about whether there's a limitation, an upper limit, on what you can do with wood, I would point out that we have built soccer stadiums in Quebec out of wood with spans of 225 feet. There are stadiums in Europe that are 350 feet in span, and a speed skating oval, although it's a steel-wood composite.
If you look at timber from a weight-to-strength ratio point of view, it is superior to reinforced concrete, because it's a sixth of the weight, and modern engineered wood has similar strength as normal reinforced concrete. From a purely structural point of view, wood can achieve what concrete can achieve or what steel can achieve.