Backyard Decks and Patios: Complete Guide for Homeowners

The choice between a deck and a patio shapes everything else in your backyard plan — drainage, sun exposure, foundation work, and a price difference that can swing $20,000 either direction. Smart planning of backyard decks and patios starts with understanding what each structure does well, where each one fails, and how to combine them when the site calls for both. This guide covers materials, installed costs, design rules, and the maintenance reality most contractors gloss over during the bid.

Part of our Decks & Outdoor guide — explore the full guide →

When a Deck Makes More Sense

Decks excel on sloped lots, second-story access, and any situation where you need elevation to clear grade. They also outperform patios in poorly draining soils — water passes between deck boards rather than ponding on a concrete pad. If your back door sits 18 inches or higher above grade, a deck is almost always the right call.

Composite deck installations average $30 to $60 per square foot, with pressure-treated southern yellow pine at $20 to $35. A 400 sq ft mid-grade composite deck typically lands between $14,000 and $22,000 installed in 2026.

When a Patio Wins

Patios suit flat or near-flat sites where the finished surface can transition seamlessly to lawn or planting beds. Concrete and pavers handle heavy furniture, fire features, and outdoor kitchens better than any wood deck — no flex underfoot, no weight restrictions, no flammable substrate near a gas firepit.

Poured concrete patios run $8 to $15 per square foot. Concrete pavers from Belgard, Techo-Bloc, or Pavestone hit $15 to $30 installed. Natural stone (bluestone, travertine, flagstone) jumps to $25 to $50 per square foot installed.

Composite Decking: Trex, TimberTech, and Fiberon

Composite decking has captured roughly half the new deck market because it eliminates the staining and sealing schedule of wood. Trex Transcend, TimberTech AZEK Vintage, and Fiberon Concordia are the three premium lines, all capped polymer or PVC products with 25 to 50 year warranties.

Surface temperatures matter in sunny climates. Dark composite boards can hit 150°F barefoot in July sun, while lighter colors stay 20 to 30 degrees cooler. AZEK’s Vintage Coastline and Trex’s Spiced Rum strike a balance between rich color and tolerable heat. Hidden fastener systems from Camo or Cortex give a cleaner finish than face-screwed boards.

Wood Decking: Pressure-Treated, Cedar, and Ipe

Pressure-treated southern yellow pine remains the budget standard at $2 to $4 per linear foot for 5/4 x 6 deck boards. It lasts 15 to 20 years with annual cleaning and biannual sealing using a product like Ready Seal or TWP.

Western red cedar runs $4 to $7 per linear foot and resists insects and decay naturally. The downside is softness — cedar dents under chair legs and shows grill scorching easily. Ipe and other Brazilian hardwoods cost $8 to $15 per linear foot and last 40+ years, but they’re brutally heavy, dull saw blades quickly, and require predrilling every screw.

Concrete Patios: Plain, Stamped, and Stained

A standard 4-inch broom-finish concrete patio is the budget patio. Stamping with patterns from Brickform or Butterfield Color creates the look of brick, slate, or cobblestone for an extra $5 to $8 per square foot. Acid staining or integral color adds depth and pattern interest.

Control joints belong every 8 to 10 feet to manage cracking. Skip the joints and you’ll see random cracks within two winters. Slope the slab away from the house at 1/4 inch per foot minimum to prevent water intrusion at the foundation.

Paver Patios: Modular and Repairable

The advantage of pavers over poured concrete is repairability. When a settled paver creates a trip hazard, you pull it, add bedding sand, and reset — a one-hour job. Concrete with the same problem means cutting, removing, and pouring a patch that will never quite match.

Pavers install over 4 to 6 inches of compacted base, 1 inch of bedding sand, then jointing sand swept into the seams. Polymeric jointing sand from Techniseal or SureBond hardens to lock pavers in place and inhibit weed growth. Expect 20 to 30 year lifespan with minimal maintenance.

Designing for Real Use

Furniture dictates square footage more than people realize. A 4-person dining table needs 12 x 12 feet at minimum to accommodate pulled-out chairs. A conversational seating arrangement with a coffee table and four chairs wants 12 x 14 feet. A grill zone needs 4 feet of clearance from any combustible material on three sides.

For mixed-use designs, separate dining and lounging zones either by elevation change (a step up to the dining area) or by surface material (pavers in dining, deck boards in lounge). Distinct zones make a 400 sq ft outdoor space feel intentionally designed rather than generic.

Built-In Features That Justify Their Cost

• Pergolas with louvered roofs: Aluminum systems from StruXure ($4,000 to $15,000) extend usable hours by hours per day
• Outdoor kitchens: Stainless cabinetry from Werever or NewAge plus a built-in grill from Bull or Lynx runs $8,000 to $25,000
• Gas fire pits: Plumbed natural gas line plus a fire feature from Outland Living or HPC adds $1,500 to $5,000
• Built-in lighting: Low-voltage LED post caps, riser lights, and accent lights at $2,000 to $5,000 transform evening use

Permits and Setbacks

Decks over 30 inches above grade typically need a building permit. Most jurisdictions require permits for any structure attached to the house regardless of height. Setback requirements from property lines vary by municipality but commonly run 5 to 10 feet for side yards and 10 to 25 feet for rear yards. Check with your local building department before pouring concrete or sinking footings.

HOAs add another layer of approval, often with restrictions on materials, colors, and height. Submit drawings before signing contracts to avoid teardowns.

Maintenance Realities by Material

Composite decking: rinse twice yearly, occasional spot cleaning with Corte-Clean or similar — no sealing, ever. Pressure-treated wood: clean and reseal every 2 to 3 years. Cedar: stain every 2 years to prevent graying. Concrete: pressure wash and reseal every 3 to 5 years with a penetrating sealer like Prosoco SLX100. Pavers: replenish polymeric sand every 5 to 7 years, pressure wash as needed. Natural stone: seal with an impregnating sealer every 2 to 4 years depending on porosity.

Getting the Best Value

The single highest-value upgrade on most outdoor projects is square footage. A 12 x 16 deck feels cramped; a 16 x 24 feels generous and only costs roughly 35 percent more. Allocate budget to size first, then to permanent features (lighting, gas lines, kitchen rough-ins), and only then to top-tier material upgrades. A larger pressure-treated deck with great lighting outperforms a small ipe deck every time for actual outdoor living.