St. Louis Deck and Patio Ideas: Affordable Outdoor Living in a City That Takes the Backyard Seriously

Budget your upcoming St. Louis deck and patio remodel with help from Block

Brick patio with a round table, string lights, and grill.

By Dennis Rogers

04.03.2026

In This Article

St. Louis is a grilling city. A Cardinals-game-on-the-radio, cooler-by-the-patio, neighbors-wander-over-uninvited kind of grilling city. The backyard here isn't aspirational. It's operational. It's where Saturday happens, where the smoker runs all afternoon, where the kids rotate between the yard and the sprinkler while the adults sit under the umbrella and argue about whether Pappy's or Bogart's has the better ribs.

That culture, combined with some of the most generous lot sizes and affordable construction costs in any major metro, makes St. Louis one of the best cities in the country for investing in outdoor living space. The lots give you room. The labor costs keep projects accessible. And the housing stock, which skews heavily toward brick bungalows and mid-century ranches on flat or gently rolling terrain, provides a canvas that's straightforward to build on.

The trade-off is the climate. St. Louis has real summers (hot, humid, thunderstorm-prone) and real winters (cold enough for ice storms, with plenty of freeze-thaw cycles to test your materials). The outdoor season runs from roughly April through October, and the projects that deliver the most value are the ones that make those seven months as good as possible while offering some usability on the shoulder-season days that St. Louis serves up through November and into March.

Turn your renovation vision into reality

Get matched with trusted contractors and start your renovation today!

Find a Contractor

How much outdoor spaces cost in St. Louis

St. Louis is one of the most affordable major metros for outdoor construction. Labor rates are below the national average, lot sizes don't create the access constraints that drive up costs in denser cities, and the permitting environment is straightforward.

A basic concrete patio (400 to 600 square feet) typically costs $2,500 to $7,000. Pavers run $8 to $22 per square foot installed. Stamped concrete, which is popular in the STL market for its ability to mimic more expensive stone, costs $7 to $15 per square foot.

Composite decking runs $22 to $45 per square foot. Pressure-treated wood decks, still the most common choice in the metro, cost $12 to $28 per square foot. Cedar decking falls in between at $18 to $35 per square foot and offers better natural resistance to rot and insects.

A covered patio or pavilion structure runs $10,000 to $35,000 for a 300- to 400-square-foot space. Screened porches cost $12,000 to $35,000. Outdoor kitchens range from $5,000 for a basic grill island to $40,000+ for a full setup.

To put the affordability in context: the same 400-square-foot composite deck that costs $18,000 to $25,000 in St. Louis might run $25,000 to $35,000 in Denver and $30,000 to $40,000 in San Diego. That gap lets STL homeowners build more for less, or build to a higher standard of finish at the same price point.

The housing stock and what works on it

Brick bungalows (South City, Bevo Mill, The Hill, Maplewood)

St. Louis is a brick city. The bungalows and one-and-a-half story homes that fill South City, The Hill, Bevo Mill, and Maplewood are built with the locally quarried clay brick that gives St. Louis its distinctive red and orange residential streetscapes. These homes typically sit on lots of 25 to 40 feet wide and 100 to 125 feet deep, with most of the usable outdoor space in the back.

Patios are the natural choice for these homes. The lots are flat or nearly flat, the backyards are long enough for a generously sized patio, and the ground-level access from the home's rear door makes the transition from inside to out simple. A paver or stamped concrete patio of 300 to 500 square feet fits the scale of these properties well without overwhelming the yard.

Design tip: when building a patio behind a brick bungalow, consider materials that complement the existing masonry rather than competing with it. Warm-toned pavers (buff, tan, or clay-colored) or natural flagstone work well alongside red and orange brick. Cool-toned concrete or stark white materials can clash.

“Making design decisions early keeps construction moving and prevents costly change orders.”

Meredith Sells, Interior Designer

Mid-century ranches (Webster Groves, Crestwood, Florissant, Oakville)

The St. Louis suburbs are filled with mid-century ranch homes on lots of a quarter-acre or more. These homes have the room, the flat terrain, and the simple architecture to support almost any outdoor project.

Decks are popular on ranches, often built off the back of the home at the same level as the interior floor. A 300- to 500-square-foot deck with stairs down to the yard is the most common configuration. For homeowners who want a larger entertainment area, combining a deck (for the elevated space adjacent to the house) with a lower-level patio (for the fire pit and additional seating) creates a two-zone layout that uses the full depth of the backyard.

Historic brick row houses (Soulard, Lafayette Square, Tower Grove)

St. Louis's historic neighborhoods feature dense brick row houses and townhomes on narrow lots. Backyard space is limited, often just 15 to 25 feet deep, which means every square foot of patio needs to earn its keep.

Small patios in these neighborhoods benefit from the same principles that work in San Diego's small-lot environments: built-in seating that doubles as storage, vertical plantings for greenery without losing floor space, and careful furniture selection that fits the scale. A bistro table with two chairs, a small grill, and a few container plantings can transform a 100-square-foot courtyard patio into a space that feels like a genuine outdoor room.

Privacy is also a consideration on dense urban lots. Fence-mounted planters, tall ornamental grasses in containers, and trellis panels with climbing vines create green screening between neighbors without the visual weight of a solid wall.

Making the most of the St. Louis outdoor season

The peak months (May through September)

St. Louis summers are hot and humid, with average highs in the upper 80s to low 90s and humidity levels that make shade essential for afternoon comfort. The saving grace is that evenings cool down meaningfully, making after-dinner outdoor time the sweet spot of the season.

Shade strategies for St. Louis:

Covered patios and pavilions. A solid roof over the dining and seating area provides both sun and rain protection. STL's afternoon thunderstorms are frequent and sometimes intense from May through August, and a covered structure means a storm doesn't end the party; it becomes the backdrop.
Pergolas with retractable canopies. Pergolas alone provide filtered shade that's often sufficient in St. Louis (the sun is less intense here than in Phoenix or Dallas). Adding a retractable fabric canopy gives you the option of full shade on the hottest days.
Shade trees. St. Louis supports excellent shade trees: red maples, oaks, and sweetgums all grow well and reach effective canopy size within 8 to 12 years. A shade tree planted to the south or west of the patio is the longest-lasting shade investment you can make.

Extending into the shoulders (March-April, October-November)

The projects that push St. Louis outdoor living past the core summer months:

Fire pits and fireplaces. A gas or wood-burning fire pit extends evening usability through October and into November, and makes early spring evenings (when daytime might hit 65 but the sun sets at 7:30) comfortable for gathering. A built-in gas fire pit runs $2,000 to $6,000. Wood-burning fire pits are more affordable ($500 to $2,000) and widely permitted in STL suburbs, though check your municipality's open burning rules.
Infrared heaters. Ceiling-mounted infrared heaters under a covered structure add 15 to 20 degrees of warmth. They extend the usable season by a month or more on each end.
Screened porches. Screens keep the bugs out during the muggy months and block wind during the cooler ones. A screened porch with a ceiling fan and a portable heater is comfortable from March through November in most years, nearly doubling the unprotected season.

Grilling and outdoor kitchen culture

St. Louis takes grilling seriously enough that the style of grill you own is a topic of genuine conversation. The outdoor kitchen, even in its simplest form, is a natural investment here because it gets used not weekly but multiple times per week during the summer months.

Compare Proposals with Ease

Easily compare contractor quotes with intuitive layouts, and side-by-side comparisons to help you make the best choice.

Get a Quote

The entry level ($3,000 to $8,000)

A quality freestanding grill (charcoal, gas, or pellet) on a well-designed patio with a small prep table and storage cabinet. This is where most St. Louis homeowners start, and for a family that grills two or three times a week, it's more than enough.

The built-in setup ($8,000 to $25,000)

A built-in grill with a stone or stucco base island, countertop space for prep, an under-counter refrigerator, and possibly a sink with running water. This is the sweet spot for the STL market: enough equipment to cook a full meal outside, positioned under the covered patio for rain protection.

The full outdoor kitchen ($25,000 to $50,000+)

Grill, smoker, side burner, sink, refrigerator, kegerator, and a bar counter with seating. In St. Louis's more affluent suburbs (Ladue, Town and Country, Chesterfield), these setups are becoming increasingly common. They function as a second kitchen from May through September and get more use than many indoor dining rooms.

Placement matters: position the grill so the cook faces the yard or seating area rather than a wall. Keep gas line runs short by placing the kitchen near the home's existing gas supply. And always put the cooking area under a covered roof. St. Louis thunderstorms don't care about your brisket.

Materials for the STL climate

St. Louis's climate hits materials from both ends: hot, humid summers promote mold and moisture damage, while winter freeze-thaw cycles crack anything that absorbs water.

Decking

Pressure-treated pine. The budget workhorse and the most common deck material in the STL metro. It handles the climate adequately with proper maintenance (sealing every one to two years), but it will show wear faster than composite over the same period. A well-maintained PT deck lasts 15 to 20 years.
Composite. Handles humidity and freeze-thaw without the maintenance demands of wood. It doesn't absorb moisture, so it won't swell, crack, or grow mold the way wood can. The upfront cost is higher, but the lifetime cost (factoring in maintenance savings) is often lower. The best choice for homeowners who want a low-maintenance surface that looks good for 25+ years.
Cedar. A middle ground between PT pine and composite. It's naturally more resistant to rot and insects than treated pine, and it weathers to an attractive gray. It requires sealing, but less frequently than pine. Cost falls between the two ($18 to $35 per square foot).

Patio surfaces

Concrete pavers. Perform well in the STL climate provided the base is properly prepared with compacted gravel for drainage. Choose pavers with low moisture absorption ratings to minimize freeze-thaw damage.
Stamped concrete. Popular in the STL suburbs for its affordability and versatility. Seal it with a penetrating sealer to reduce moisture penetration and extend its life through winter cycles.
Natural flagstone. Dense flagstone (bluestone, limestone) handles freeze-thaw well. Softer varieties can spall, so ask your supplier about the specific stone's frost resistance before committing.

Drainage on flat St. Louis lots

Unlike Pittsburgh's hills, most St. Louis residential lots are flat or gently graded. This means water doesn't naturally run away from a patio the way it would on a slope, and drainage needs to be engineered into the design.

Grade the patio surface to slope away from the house at a minimum of one-quarter inch per foot. This is subtle enough to be imperceptible when walking but sufficient to direct water away from the foundation.
Gravel base beneath pavers. A four- to six-inch layer of compacted gravel beneath paver installations provides a drainage reservoir that prevents water from pooling on the surface or saturating the clay soil beneath.
French drains. If your yard has persistent drainage issues (standing water after rain, soggy patches near the patio), a French drain along the patio perimeter captures runoff and channels it to a discharge point. Cost: $1,500 to $5,000 depending on the length and complexity.
Downspout management. If the home's gutter downspouts discharge near the patio, redirect them with extensions or underground piping to carry water at least six feet from the patio edge. Standing water at the base of a patio is the fastest path to settling and surface damage.

Permits and practical steps

In the City of St. Louis and most surrounding municipalities, ground-level patios (concrete or pavers, no roof structure) generally don't require building permits. Elevated decks, covered structures, and projects with electrical or gas connections do require permits. St. Louis County municipalities have their own fee structures, but costs are generally modest (a few hundred dollars for a residential deck permit).

For decks attached to the house, the permit process includes plan review and inspections of the footings, framing, and ledger board connection. This is standard practice and ensures the structure is safe and code-compliant. The permitting timeline is typically two to four weeks for straightforward residential projects.

Find the right contractor with Block Renovation

A well-built patio or deck in St. Louis should handle the humidity of July and the ice of January without constant attention, while giving you the outdoor space to do what STL homeowners do best: gather, grill, and enjoy the backyard. Block Renovation connects homeowners with vetted, licensed contractors who understand the specific demands of building outdoor spaces in the St. Louis market. You can compare detailed proposals side by side and build with protections like progress-based payments and a one-year workmanship warranty.

Remodel with confidence through Block