Planning to build a deck this year? You're going to need some built-in pest control. We're not talking electrified fences or moats filled with alligators that'll keep Uncle Charlie and pesky neighbors away. Wherever decks touch soil, framing lumber is subject to rot and termites. Instead use special lumber that's been pressure-treated with pesticides to prevent such damage. Pressure-treated lumber can be cut, nailed or screwed just like any other wood, but there are special precautions you should take when using it. First, wear gloves. Pressure-treated lumber is often rough and those splinters are treated with pesticide. Always wear a filter mask to avoid breathing in treated sawdust when making cuts, and treat all sawed-off ends with a wood preservative containing pesticide. Plain old lumber is a welcome mat for pests that can turn any deck into a science experiment in no time. Pressure-treated lumber keeps the bad stuff away while you and your loved ones relax and play. And that's the On The House tip for today.