When building a deck or other outdoor platform, don't use lumber wider than 6 inches. Ponding water on wide boards can lead to eventual cupping problems. For example, use two 2x6's instead of one 2x12. Pros advise installing the boards crown-side up to help minimize cupping and shelling of grain layers.
There are three main ways lightning enters homes and buildings: (1) a direct strike, (2) through wires or pipes that extend outside the structure, and (3) through the ground. Regardless of the method of entrance, once in a structure, the lightning can travel through the electrical, phone, plumbing, and radio/television reception systems. Lightning can also travel through any metal wires or bars in concrete walls or flooring.