Lead dust can form when lead-based paint is dry scraped, dry sanded, or heated. Dust also forms when painted surfaces bump or rub together. Lead chips and dust can get on surfaces and objects that people touch. Settled lead dust can re-enter the air when people vacuum, sweep, or walk through it.
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 2×6’s instead of one 2×12. Pros advise installing the boards crown-side up to help minimize cupping and shelling of grain layers.