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What Is the Cheapest Way to Build a Deck

  • Writer: JCS
    JCS
  • Aug 11
  • 3 min read

A deck can add useful outdoor space without the cost of a full room addition, but the price can climb fast when the design gets too big, too tall, or too custom. The cheapest way to build a deck is to keep the structure simple, choose practical materials, and plan the work before buying anything.


Saving money does not mean building something flimsy. It means spending where it matters most, especially on the frame, footings, fasteners, and safe installation.


Wide-angle view of a simple backyard deck frame being built near a house
A simple design is usually the most affordable place to start.

Start with a simple deck design


The most affordable deck shape is usually a basic rectangle or square. Straight lines reduce cuts, waste, labor, and hardware. Curves, multiple levels, built-in benches, wide staircases, and custom rail details all add cost.


A budget-friendly deck often has these features:


  • A low height close to the ground

  • One main platform

  • Standard board lengths

  • One simple stair location

  • Minimal railing, where code allows


A ground-level deck can cost less because it may need fewer stairs and less railing. It can also be easier to frame. That said, local building rules still matter, and soil conditions can affect footing needs.


Pick materials that balance price and lifespan


Pressure-treated wood is often the lowest-cost common decking material upfront. It is widely available and works well for framing and deck boards when installed and maintained correctly.


Composite decking costs more at the start, but it needs less upkeep over time. Cedar and redwood offer a natural look, but pricing varies by region and availability.


For the lowest initial cost, many homeowners choose:


Pressure-treated lumber for framing

This is a common, practical choice for posts, beams, joists, and blocking.


Pressure-treated deck boards

These usually cost less upfront than composite boards.


Standard fasteners and hardware rated for exterior use

Do not cut corners here. The wrong hardware can rust, weaken, or fail.


Close-up view of pressure-treated deck boards stacked beside galvanized hardware
Material choices have a major effect on the final deck budget.

Save by sizing the deck carefully


A bigger deck means more boards, more joists, more footings, more fasteners, and more labor. One of the easiest ways to save is to build only the space that will be used often.


Before choosing a size, think through the main purpose. A small grill area needs less room than a dining table and lounge setup. A deck for two chairs and a side table can stay compact and still feel useful.


A smart budget move is to mark the outline with stakes and string before building. Walk around it. Set a few chairs inside the outline. This makes it easier to avoid paying for square footage that will sit empty.


Avoid changes after work begins


Changes are one of the fastest ways to raise the cost of a deck. Moving stairs, changing board direction, adding rail sections, or expanding the footprint after materials are ordered can create waste and extra labor.


A clear plan should include:


  • Deck size and shape

  • Stair location

  • Railing needs

  • Board material

  • Preferred finish

  • Permit and code requirements


The cheapest deck is not always the smallest deck. It is the deck that is planned well, built safely, and kept free of expensive last-minute changes.

Eye-level view of a marked deck layout with stakes and string in a backyard
Laying out the deck first helps prevent costly changes later.

Know where not to cut costs


Some parts of a deck should never be treated as bargain areas. Footings, framing, ledger attachment, flashing, and structural connectors protect the entire build.


Cheap materials in the wrong place can lead to water damage, sagging, loose railings, or unsafe stairs. A safe deck needs the right support from the ground up.


This is where experienced help can save money. JCS can help compare options, avoid overbuilding, and make sure the budget goes toward the parts that matter. That can reduce waste while keeping the finished deck solid and usable.


Wide-angle view of a finished simple wood deck with chairs in a quiet backyard
A well-planned deck can be affordable, strong, and ready to enjoy.

The cheapest deck is planned before it is built


The cheapest way to build a deck is to keep the layout simple, choose cost-effective materials, limit the size, and avoid mid-project changes. Spend carefully, but do not sacrifice safety or structure.


Ready to build a deck without overspending? Contact JCS to plan a practical, budget-friendly deck that fits your space and helps you save.


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