Double Garage With Carport Price and Cost Breakdown 2026

Prices for a double garage with a carport vary by size, materials, and local labor. This article breaks down typical costs, ranges, and what drives the total price for a common 20×20-foot garage plus a 12×20-foot carport. The terms cost and price appear here to reflect the budgeting perspective buyers use when planning a project.

Item	Low	Average	High	Notes
Concrete slab	$4,000	$6,000	$9,000	Plain slab with rebar, 4–6 inch thickness, in-ground prep
Framing (stick-built)	$8,000	$14,000	$22,000	Wood or steel framing; includes walls and roof deck
Roofing (carport and garage)	$3,000	$6,000	$10,000	Asphalt shingles or metal panels
Doors (two-car garage doors)	$2,000	$4,000	$8,000	Insulated sectional doors with remote openers
Electrical / lighting	$1,000	$2,500	$5,000	Outlets, lights, wiring to code
Permits and inspections	$500	$2,000	$4,000	Local permit and plan review fees
Site work and drainage	$500	$2,500	$6,000	Grading, trenching, trench drains
Delivery / disposal	$500	$1,500	$3,000	Material haul-off and dumpster fees
Total project	$20,000	$40,000	$70,000	Assumes non-luxury finish in typical suburban lot

Assumptions: Midwest labor rates, standard material quality, normal access.

Price Snapshot for a 20×20 Foot Double Garage With 12×20 Foot Carport

Typical total price ranges from $28,000 to $60,000 depending on roof style, siding, and door choices. In markets with higher general contractor rates or stricter permitting, totals near $70,000 aren’t rare for premium finishes or complex site conditions. The most influential cost drivers are concrete prep, framing method, and door system quality. For a basic configuration with standard siding and asphalt shingles, buyers usually see the lower to mid-range near $30,000–$40,000. Upgrades such as full stone veneer, metal roofing, or premium insulated doors push the price toward the upper end, often $50,000–$60,000 or more.

Major cost components for this project

Concrete slab and footings determine longevity and insulation, and can be a large upfront expense. The slab range typically spans $4,000–$9,000 depending on thickness, reinforcement, and local concrete price.

Framing and shell covers wall construction, roof framing, and sheathing. A mid-range build in many suburbs falls around $12,000–$20,000, but higher-end stick-built frames or engineered wood systems can reach $25,000–$40,000.

Door systems influence daily use and security. Two insulated sectional doors plus openers commonly cost $3,000–$8,000, with premium options at the top end—especially if doors include windows, larger headroom, or heavier gauge tracks.

Electrical service and lighting affects convenience and future upgrades. A basic setup with outlets and garage lighting runs about $1,500–$3,500; add a dedicated 240V line or EV-charging capability, and expect $2,000–$5,000 extra.

Permits and site prep vary widely by city. Typical permitting runs $500–$2,500; more complex sites with drainage work, septic or utility relocations can push costs above $5,000.

Variables that most affect the final quote

Site access and grading changes excavation needs and drive approaches. A compact, flat lot keeps site work under $2,000, while sloped or cramped sites can add $3,000–$6,000 for excavation, retaining walls, or regrading.

Roof and siding choices shift costs by material class. A basic asphalt roof is typically $3,000–$6,000, while metal panels or premium architectural shingles add $2,000–$5,000 or more.

Door and window configuration affects daily use and energy costs. Standard doors are cheaper; multi-panel or oversized doors with insulated glass add $1,000–$4,000 per door.

Regional labor rates vary by market; urban areas in California or the Northeast commonly see a 10%–25% premium compared with Midwest or Southern markets.

Practical ways to trim price without sacrificing safety or function

Match scope to need by using a standard 2-car garage footprint first, then add the carport as a separate phase if budget allows. Sticking to a single contractor for both components can save coordination fees.

Choose mid-range materials for siding and roofing; composites or vinyl siding paired with premium asphalt may balance durability and cost. Consider downgrading to basic concrete finish and standard doors if the budget is tight.

Schedule during off-peak demand for labor-heavy phases, typically late fall or winter in many regions, to reduce labor-rate surges and availability constraints.

Regional price variations you should expect

Coast vs inland markets often show a 5%–15% delta in permitting and materials. The Pacific and Northeast regions frequently run at the upper end of the price range, while the Midwest and Southeast stay near the middle.

For a fixed footprint like 20×20 with a 12×20 carport, durable yet cost-conscious material combos can shift totals by several thousand dollars depending on regional supplier costs, weather-related delays, and local code requirements.

How to read a realistic quote for this project

Look for itemized lines with concrete, framing, roof, doors, electrical, and permits. Ensure the table shows per-unit or per-square-foot costs where relevant, such as per square foot for slab work or per door for entry systems.

Ask about contingencies a typical builder includes 5%–10% to cover unexpected site conditions. If a quote lacks a contingency line, consider requesting one or ask for a revised bottom-line figure that includes potential site factors.

Cost-saving strategies specific to a double garage with carport

Bundle components such as a single roofing system across both structures to gain material discounts and reduced labor time.

Limit upgrades in the initial phase postpone premium finishes or specialty windows to a later improvement cycle, when budget allows.

Choose standard door systems with reliable performance rather than premium, feature-rich options that add thousands without proportional benefit.

Compare quote pieces and plan a phased build

Get at least three detailed quotes with the same footprint and material specs to see how the line items differ. A phased approach—garage first, carport later—can provide price visibility and cash flow options.

Example cost breakdowns by scenario

Scenario A: Moderate finishes in a suburban lot totals typically fall in the $32,000–$48,000 range, driven by mid-range siding, standard doors, and asphalt roofing.

Scenario B: Premium doors with metal roofing can push totals to $50,000–$70,000, especially if site prep is complex or regional labor costs are high.

Scenario C: Simple construct in a rural area may land around $28,000–$40,000, benefiting from lower labor rates but potential additional costs for delivery and drainage if sites are remote.

Per-unit pricing and typical finishes for clarity

In many bids, pricing is expressed in totals plus per-square-foot or per-door charges. For example, slab work is commonly quoted per square foot ($12–$22/ft² depending on thickness and reinforcement), while framing is priced per linear foot of wall ($20–$40/ft) or as a lump sum by phase. Doors often show as a per-unit cost ($1,500–$4,000 per 2-car door, installed).

Cost Component	Low	Average	High	Notes
Slab per ft²	$4	$6	$9	Includes formwork and reinforcement
Framing per linear ft	$20	$30	$40	Wood or steel framing
Door per unit	$1,500	$3,000	$4,000	Two-car insulated door with opener
Roofing per square	$350	$500	$750	Installed roofing material
Electrical rough-in	$1,000	$2,000	$3,500
Permits	$500	$1,500	$3,000

Assumptions: standard 20×20 garage, 12×20 carport, standard access, typical climate zone, non-luxury finish.