Deck Building Cost in Maryland (2026)
Deck Building in Maryland runs about 10% above the national average. A typical 320 sq ft project starts around $5,280–$8,800 for pressure-treated wood. Estimate your exact project below.
Maryland runs above the national average on cost, reflecting a high cost of living and a competitive labor market in the Baltimore-Washington corridor.
Reviewed by the AnyCoster Research Team · How we estimate costs
Deck Building Cost Calculator
Adjust the details for an installed-cost range tailored to you.
Length × width of the deck surface. A 16×20 deck is 320 sq ft.
Ballpark estimate for planning — not a quote.
Get your exact price from local deck pros
This is a ballpark — compare up to 3 free, no-obligation quotes from vetted contractors in Maryland.
Deck Building cost in Maryland by material
Installed cost for a typical 320 sq ft project in Maryland.
| Material | Per sq ft | Typical MD project |
|---|---|---|
| Pressure-treated wood | $16.5–$27.5 | $5,280 – $8,800 |
| Cedar / redwood | $27.5–$44.0 | $8,800 – $14,080 |
| Composite (Trex-style) | $33.0–$66.0 | $10,560 – $21,120 |
What affects your Maryland cost
- Decking material and railing style
- Height off the ground and stairs
- Footings, framing and permits
- Built-ins (benches, pergola, lighting)
- Local labor rates
Deck Building in Maryland: local factors that move the price
Climate & weather
Humid summers, cold winters, and Chesapeake Bay and coastal exposure bring moisture, freeze-thaw, and occasional storm-surge concerns. Drainage and weatherproofing matter across the state.
Regional norms in Maryland
Brick and vinyl siding are common, with elevated or flood-aware construction near the bay and shore.
Best time to schedule
Spring and fall are the most comfortable seasons for exterior projects.
Permits & code
Most Maryland jurisdictions require permits for structural, roofing, and electrical work, with Critical Area and flood rules applying near the bay.
Maryland deck building — FAQ
How much does deck building cost in Maryland?
In Maryland, a typical 320 sq ft deck building project runs about $5,280–$8,800 for pressure-treated wood, installed. That's about 10% above the national average. Higher-end materials cost more — use the calculator above for your exact size and material.
How much does deck building cost per sq ft in Maryland?
In Maryland, installed deck runs about $16.5–$66.0 per sq ft depending on material (pressure-treated wood $16.5–$27.5, cedar / redwood $27.5–$44.0, composite (trex-style) $33.0–$66.0). That's about 10% above the national average.
Do I need a permit for deck building in Maryland?
Most Maryland jurisdictions require permits for structural, roofing, and electrical work, with Critical Area and flood rules applying near the bay. Always confirm requirements with your local building department, and factor permit time and inspections into your schedule.
When is the best time to do deck building in Maryland?
Spring and fall are the most comfortable seasons for exterior projects. Humid summers, cold winters, and Chesapeake Bay and coastal exposure bring moisture, freeze-thaw, and occasional storm-surge concerns. Drainage and weatherproofing matter across the state.
How much does it cost to build a deck in 2026?
A typical 320 sq ft deck runs about $5,000–$8,000 in pressure-treated wood, or $10,000–$19,000 in composite, installed. Size, height, railings and material drive the price — use the calculator for a localized estimate.
Is composite decking worth it?
Composite costs roughly 1.5–2× wood up front but eliminates staining/sealing and lasts 25–30+ years, so total cost of ownership is often lower. It's the popular choice for homeowners who don't want annual maintenance.
Top cities in Maryland
Metro-level deck building costs — usually a bit above the Maryland state average.