Deck builders in Saint Paul, MN

Homes in Saint Paul have a median construction year of 1976, so a deck original to a typical house would now be about 50 years old — beyond the point where wood framing, fasteners and flashing can be assumed sound.

Many decks from the 1970s and 1980s were built before today's detailed deck provisions appeared in model codes. Common issues on decks of this age include corroded hangers, posts set directly in soil and ledger boards fastened with nails. Replacement is often the better value than repeated repairs.

That makes Saint Paul's housing 11 years newer than Ramsey County as a whole, where the median home was built in 1965. Statewide, the median Minnesota home was built in 1979. Among the 62 covered Minnesota communities with Census data, Saint Paul ranks #13 for oldest housing. In these ZIP codes, 32% of homes were built before 1960, 24% between 1960 and 1979, 27% between 1980 and 1999, and 17% since 2000 — the single largest group dates to the before 1940.

The nearest NOAA climate station with 1991–2020 normals is St Paul 3sw. It records an average of 147 days a year with a low at or below 32°F — a long, hard freezing season. On roughly 71 of those days the temperature climbs back above freezing, so water in wood, soil and gaps between boards repeatedly freezes and thaws.

For Saint Paul, 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 80°F and only about 8 days a year at 90°F or above — so board color can be chosen mostly on looks.

Budget, upkeep tolerance and sun exposure on your particular lot still decide the final choice between these options.

Saint Paul has about 346,159 housing units across its covered ZIP codes. 53% are single-family detached homes, 12% are attached homes such as townhouses and rowhouses, and about 36% are in buildings with two or more units. Roughly 65% of occupied homes are owner-occupied.

The mix of detached homes and attached or multi-unit housing in Saint Paul means deck projects range from large backyard decks to compact rear decks on narrow lots. Lot size, neighbors' sightlines and any association rules shape the right design.

• Retrofit decks on older homes: about 146,100 homes (42%) 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 141,257 homes (41%) 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 29,175 homes (8%) 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.

With about 147 freezing days a year, the building window in Saint Paul is compressed. Design, drawings and permits are usually handled in winter so footings can go in as soon as the ground allows in spring, and finishes like stain are applied before nights turn cold in fall.

For Saint Paul, MN, ask the permit office whether your deck needs a permit based on its size, height and attachment to the house, which drawings and inspections are required. Statewide code background for Minnesota is on our state page; local rules change, so the building department remains the authority.

The closest covered area is South Saint Paul, about 5 miles from the center of Saint Paul's covered ZIPs. Its median home was built in 1958, 18 years earlier than in Saint Paul. Saint Paul has 14 percentage points fewer detached single-family homes (53% vs. 67%), which changes how many projects are backyard decks versus compact townhouse decks. Owner-occupancy is 65% in Saint Paul compared with 70% in South Saint Paul. Saint Paul's covered ZIP codes span about 278.8 square miles of land with roughly 346,159 homes — about 1,242 per square mile, a typical suburban density where most homes have usable backyards.