Deck builders in Ramsey County, MN

Ramsey County has about 233,870 homes, with a median construction year of 1965 (the Minnesota median is 1979). Within our covered ZIP codes — about 233,344 homes — the median is 1965, close to the county as a whole.

The median home in the covered parts of Ramsey County dates to about 1965, roughly 61 years ago. Most homes from that era were built without a deck; the decks you see now were usually added in later decades, sometimes by previous owners with little documentation.

That history matters: retrofit decks are where missing ledger flashing, undersized footings and nailed-rather-than-bolted connections are most common. Before resurfacing or extending an add-on deck, it is worth confirming how it was framed and attached.

The nearest NOAA climate station with 1991–2020 normals is Vadnais Lake, about 3 miles away. It records an average of 157 days a year with a low at or below 32°F — a long, hard freezing season. On roughly 93 of those days the temperature climbs back above freezing, so water in wood, soil and gaps between boards repeatedly freezes and thaws.

For Ramsey County, that means footings must bear below the locally required frost depth to avoid heaving, and wood surfaces should be kept sealed so absorbed water doesn't split boards over winter. Synthetic decking tolerates freeze-thaw well but still needs the manufacturer's expansion gaps.

Snow is a major factor: the U Of Mn St Paul station averages about 40.4 inches a year. Framing has to carry snow load, stairs need a plan for winter use, and snow removal should be done with plastic-bladed shovels and ice-melt products the decking manufacturer allows.

Precipitation averages about 29.2 inches a year, falling on about 54 days with 0.1 inch or more — wet enough that drainage and flashing still matter, but dry spells also let wood surfaces dry out and check in the sun.

Summer heat is mild by comparison — average summer highs near 81°F and only about 12 days a year at 90°F or above — so board color can be chosen mostly on looks.

• Retrofit decks on older homes: about 128,883 homes (55%) predate 1970. Here the priority is confirming that add-on decks are properly attached — or rebuilding them freestanding — before any cosmetic work.
• Replacement and major repair: about 75,374 homes (32%) were built between 1970 and 1999, the age group whose original or early add-on decks are most likely to have worn-out framing, connectors and boards.
• Upgrades and expansions: about 15,109 homes (6%) were built since 2010. Their decks are usually sound but small or builder-grade, so enlarging the deck, adding stairs and switching to composite or upgraded railings are common.

52% of Ramsey County's homes are detached single-family houses and 7% are townhouses or other attached homes; 61% of occupied homes are owner-occupied. With mostly detached homes, wood remains a practical lower-cost option for homeowners willing to clean and seal on schedule.

Minnesota has a statewide building code administered by the Department of Labor and Industry and enforced by municipalities that have adopted it. Before work starts, confirm with the building department for your exact address whether a permit is required, what drawings and inspections it involves, and whether an HOA must approve the design.