Fence and deck installation

By climate

• Long, cold winters with heavy snow and a short, warm summerFrost heave lifts shallow fence posts and leaves gates that no longer latch by spring. Ask how deep posts will be set below the frost line, and plan deck staining for summer when wood is dry and nights stay warm enough for the finish to cure.
• Wet maritime weather, salt air, many freeze-thaw cycles and storm-driven rain and snowSalt spray corrodes fasteners and hardware, while wet weather and freeze-thaw rot posts at ground level. Ask for coated or stainless screws and hinges, and for posts set in well-drained footings so water does not sit against the wood.
• Four seasons: humid summers, cold winters with snow and repeated freeze-thawHumid summers swell wood and cold winters shrink it, which loosens boards and opens gaps on fences and decks. Posts need to sit below frost depth, and a fresh coat of stain every few seasons keeps decks from graying and splitting.
• Hot, humid summers, mild winters, heavy storms and in coastal areas hurricanes; pests and mold all yearConstant moisture and termites attack wood posts, and storms test every panel and gate. Ask about rot-resistant or treated posts, wind-rated spacing in storm zones, and whether vinyl or aluminum makes more sense than wood for that yard.
• Desert heat, strong sun and UV, dust, monsoon downpours, very little freezingDesert sun bleaches and cracks wood quickly, and hard, rocky soil makes post holes slow to dig. Plan installs for cooler months, ask about digging conditions in the quote, and choose UV-stable finishes or materials that will not warp in the heat.
• Dry, high-altitude climate with strong UV, big day-night swings, snow and freeze-thawStrong UV dries out wood while frost heave works posts loose over the winter. Ask for posts set below frost depth with good drainage, and plan deck staining more often than in lower, cloudier places since the sun breaks down finish quickly.
• Mild, wet marine climate: long rainy seasons, moss and moisture, little hard freezing near the coastMonths of rain feed moss, mildew and rot where boards meet posts and ground. Good installs leave gaps for drainage and airflow, and deck cleaning and sealing is best done in late summer after a dry spell lets the wood dry out fully.
• Dry summers and wet winters, wildfire smoke and ash, earthquakes, almost no snow on the coastLong dry summers shrink and crack wood, and in fire-prone areas combustible fences near the house are a concern. Ask about noncombustible options close to the home, and seal decks before the winter rains so water does not soak into dried-out boards.
• Extreme cold, permafrost in places, very short building season and remote freightPermafrost and deep frost make posts shift, so footings and post types need extra care, and the building season is short. Order lumber and hardware early because freight takes time, and book the crew for the first stretch of thawed ground.