The construction of the fleet was largely supervised by Noah Brown, a shipwright brought in from New York City. The keels of two brigs were each constructed out of a single black oak log. Due to a lack of iron, the timbers that made up the hulls were joined using wooden pins called treenails. In place of the oakum and pitch normally used to caulk ships, lead was used. The timbers used in the brigs were still green, as the builders did not have the luxury of time to allow the wood to dry properly. A total of 65 cannons were shipped to Erie to arm the fleet; Hamilton approved the production of 37 cannons by a foundry in Washington, D.C. and the rest were moved from Sackets Harbor. and were launched in April 1813, in May, and the brig on 25 June. "Niagara" was launched on 4 July along with .