The Stockholm-based company posted a net profit of US$137.9 million in the October-December period. Revenue came to US$4.2 billion.
Skanska said the market for commercial building construction in the U.S. has picked up momentum.
The new federal program for infrastructure as well as a general improvement in the economy will have a positive impact during 2006.
However, Skanska added that rising costs of fuel as well as for certain types of materials add a degree of volatility to the market, since it both affects the ability of customers to finance projects as well as the project risk for contractors.
The outlook for commercial building construction in the Nordic countries remains cautiously positive where the retail sector is among the strongest, it said.