Find licensed deck builders and contractors across Maryland. Browse 10 cities with license data and local permit requirements.
10
Cities Covered
$21-$52
Cost per Sq Ft
$86-$575
Permit Fees
Deck permits across Maryland are administered at the city or county level, and requirements vary between jurisdictions. In Baltimore, the dominant building code in force is International Building Code with Baltimore City amendments. A permit is required to build a deck on a residential house. Check with DHCD for any specific exemptions. That said, any deck that meets any one of the following usually requires a permit regardless of size: attached to the dwelling, over 30 inches above grade, covered with a roof, or serving a required exit door. Baltimore processes residential plan reviews in most permits are valid for 6 months. processing time varies.. Always verify current rules directly with your local building department before pulling in a contractor, because Maryland has no statewide fee schedule — every city sets its own.
Baltimore
Pop. 585,708
Columbia
Pop. 104,681
Germantown
Pop. 90,676
Silver Spring
Pop. 81,015
Frederick
Pop. 78,171
Waldorf
Pop. 77,005
Ellicott City
Pop. 73,272
Glen Burnie
Pop. 72,420
Rockville
Pop. 68,155
Gaithersburg
Pop. 67,878
Average costs for a typical 300 sq ft deck with railing in Maryland.
| Material | Low | Average | High |
|---|---|---|---|
| Pressure-Treated Wood | $6,458 | $8,280 | $10,930 |
| Cedar | $8,970 | $11,500 | $15,180 |
| Composite (Trex, TimberTech) | $12,558 | $16,100 | $21,252 |
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