What Will My New Deck Cost?
Pick your material, size, railings, steps and lighting and get a realistic price range for a new deck in St. Charles County in about two minutes.
Your estimated range
—This is a planning range based on typical local deck costs, not a quote. Final pricing depends on your yard, attachment to the house, footings and permits. We confirm everything on site.
What drives the price of a deck
Two decks the same size can be thousands of dollars apart. Here's where the money goes.
Decking material
Composite costs more up front than pressure treated lumber, but it won't need staining or sealing and holds its color for decades.
Height off the ground
Taller decks need longer posts, deeper footings, bracing and code-required railings. A second-story deck costs noticeably more per square foot than a ground-level one.
Railings
Railings are priced by the linear foot, so style matters. Wood is the budget option, while aluminum and cable rail cost more and need almost no upkeep.
Stairs
Each step adds framing, treads and risers. Wide stairs and long runs down from a raised deck add up quickly, especially once handrails are added.
Lighting
Low-voltage post cap and stair lights are much easier to wire during the build than to add after the deck is finished.
Common deck questions
Should I choose composite or pressure treated wood?
Pressure treated lumber costs less up front but needs cleaning, staining and sealing every couple of years to hold up to Missouri weather. Composite costs more to build but needs little more than an occasional wash, so it often evens out over the life of the deck.
Do I need railings on my deck?
Building codes generally require guardrails on any deck surface more than 30 inches above the ground, and handrails on stairs with four or more risers. Lower decks can go without, though many homeowners still add them.
How accurate is this estimate?
It's built from typical costs for the decks we build, so it should put you in the right range for budgeting. It can't see your yard's slope, soil, access or how the deck attaches to your house, which is why the final proposal comes after we visit.
Do I need a permit for a new deck?
Most new decks, especially ones attached to the house or raised off the ground, need a building permit. We take care of the permit and inspections as part of the project.
Can you replace my old deck?
Yes. We can tear out and haul away an existing deck, and in some cases reuse a sound frame with new composite boards. Let us know about the old deck when you send your estimate.
What happens after I send my estimate?
We review your selections, reach out with a few questions, and schedule a visit to measure. You then get a detailed written proposal with firm pricing.
Ready for a real number?
Send us the deck you designed here. We'll measure, talk through the details, and put together a detailed proposal.