Maryland deck costs are above the national average in 2026, particularly in the Baltimore and Washington DC suburbs. Expect to pay $23 to $40 per square foot for pressure-treated wood and $40 to $74 per square foot for composite decking. A standard 12×16 deck in Maryland typically costs between $6,200 and $13,800.
Estimates are for planning purposes only and based on 2025 contractor data.
Always get at least 3 quotes before hiring. Prices vary by ZIP code, site conditions, and contractor availability.
Deck costs in Maryland are above the national average in 2026, particularly in the Baltimore and Washington DC suburbs. Expect to pay $23 to $40 per square foot for pressure-treated wood and $40 to $74 per square foot for composite decking. A standard 12×16 deck in Maryland typically costs between $6,200 and $13,800.
Frequently Asked Questions
How much does a deck cost in Maryland in 2026?
Maryland homeowners typically pay between $5,800 and $14,500 for a new deck in 2026. Montgomery County and the DC suburbs run significantly higher than western Maryland and the Eastern Shore due to higher labor costs.
What is the best decking material for Maryland?
Composite decking is popular in Maryland due to humidity, coastal moisture near the Chesapeake Bay, and cold winters. Pressure-treated wood also performs well but requires more maintenance in Maryland humid climate.
Do I need a permit to build a deck in Maryland?
Yes, Maryland requires building permits for most deck projects. Requirements vary by county. Montgomery, Prince George, and Anne Arundel counties have detailed requirements. Permit costs range from $150 to $700.
When is the best time to build a deck in Maryland?
Spring and fall are ideal building seasons in Maryland. Summer heat and humidity can slow construction. The DC suburbs often see peak demand in spring so book your contractor early for best availability.