Deck Cost Calculator

Plan Your Deck Project With Greater Clarity

A new deck can create more room for relaxing, gathering, dining, and enjoying your outdoor space. Before choosing materials or finalizing a design, it helps to understand the general investment your project may require.

Use the TGR General Construction deck cost calculator to build an early planning range based on your deck size, material preferences, railings, stairs, and project complexity.

Your estimate gives you a practical starting point. When you are ready, our team can review your property, answer your questions, and help turn your ideas into a clear project plan.

Schedule Your Deck Consultation
Modern backyard deck with black metal railing and stairs, attached to a green house.

Plan Your Deck Project With a Helpful Starting Range

Enter the details you currently know about your project. You can adjust the selections to compare different deck sizes, material options, railings, stairs, and levels of complexity.

This range is intended for preliminary planning. Final pricing depends on the approved design, property conditions, structural requirements, material selections, permitting needs, access, demolition, and complete project scope.

What Does the Deck Calculator Include?

The calculator provides an initial range based on the primary project details entered into the tool. Depending on the calculator configuration, the estimate may account for:

  • Approximate deck square footage
  • Selected decking material
  • General project complexity
  • Railing type and approximate length
  • Number of stair steps
  • Typical labor and construction considerations

The result helps establish a starting point before an on-site consultation and detailed project review.

Schedule a Deck Consultation

After using the calculator, the next step is to schedule a consultation with our team. TGR General Construction will walk through the details with you, answer your questions, and help create a clear plan for a deck that fits your space, your home, and the way you want to use it.

Schedule Your Deck Consultation

Deck Project Planning Tool

Decking Cost Calculator

Use this calculator to estimate a general planning range for your deck project. Final pricing depends on site conditions, design details, access, materials, framing needs, stairs, railings, permitting needs, and project scope.

Project Details

Minimum project size for pricing is 200 square feet.

Materials

Railings and Stairs

Use the total number of steps across all stair runs.

What Is Not Confirmed by the Calculator?

Some deck details require an evaluation of the home and property before they can be accurately included in a project proposal.

The calculator may not fully account for:

  • Condition of an existing deck or substructure
  • Demolition and material removal
  • Ledger board condition
  • Footing, post, beam, and framing requirements
  • Ground slope and soil conditions
  • Deck elevation and structural height
  • Property access and material staging
  • Engineering requirements
  • Local permitting requirements
  • Built-in benches or custom seating
  • Privacy screens
  • Multiple landings or complex stair systems
  • Lighting and electrical coordination
  • Drainage systems
  • Patio covers or other connected improvements
  • Changes in material availability
  • Custom design and finish details

These items can be reviewed during your consultation and incorporated into a project-specific scope.

How Accurate Is the Deck Cost Calculator?

The deck calculator provides a general planning range based on the information entered. It is most useful during the early stages of planning, when you want to compare deck sizes, decking materials, railing selections, or stair configurations.

It is not a final quote. A formal proposal requires TGR General Construction to confirm the design, measurements, structural requirements, material selections, site conditions, and approved scope.

How does deck size affect the project range?

Deck size is one of the primary factors used to calculate a planning range. A larger deck requires additional decking, framing, footings, labor, and finish materials.

Square footage is only one part of the project. Two decks with similar dimensions may have different requirements depending on height, layout, access, railings, stairs, and structural design.

How does decking material affect the cost?

Material selection influences the deck’s appearance, maintenance needs, performance, and long-term value.

Pressure-treated wood provides a traditional wood appearance. Composite and Trex decking provide a finished surface designed for consistent performance and reduced routine maintenance.

Individual product lines, colors, board profiles, fastening systems, fascia, and matching components can also influence the final range.

How do railings affect deck pricing?

Railings are generally calculated by type and linear footage. Wood, composite, and metal railing systems have different material and installation requirements.

Deck height, layout, corners, stair rails, post placement, and product selection can also affect the railing scope.

What Factors Affect the Cost of a Deck?

How do stairs affect the project range?

Deck stairs require framing, treads, stringers, landings, supports, and, in many applications, accompanying railings.

The number of steps provides a helpful starting point, but stair width, direction, landings, elevation, and access conditions must also be reviewed.

How does project complexity affect the estimate?

Project complexity reflects the level of planning, construction coordination, access, and structural work associated with the deck.

A straightforward ground-level rectangular deck may have a different planning range from an elevated deck with multiple levels, detailed stairs, extensive railings, restricted access, or custom design elements.

Does deck replacement cost more than building a new deck?

A deck replacement may include demolition, material removal, and evaluation of existing structural components. The final scope depends on whether any footings, posts, beams, ledger boards, or framing components can appropriately remain as part of the approved design.

The calculator provides a starting range. TGR General Construction will review existing conditions before confirming the replacement scope.

Beautiful outdoor deck with seating and lush forest view.

How to Measure Your Deck for the Calculator

You do not need final construction drawings to use the calculator. A reasonable approximation is enough for an early planning range.

For a rectangular deck:

Length × width = estimated square footage

For example:

20 feet × 15 feet = 300 square feet

For an L-shaped or multi-section deck, calculate each rectangular section separately and add the totals together.

Example:

  • Main section: 20 feet × 15 feet = 300 square feet
  • Additional section: 10 feet × 8 feet = 80 square feet
  • Approximate total: 380 square feet

Your consultation will include a more detailed review of dimensions, layout, access, and project requirements.

Wood, Composite, and Trex Decking Options

Pressure-Treated Wood Decking

Pressure-treated wood is a traditional decking option with a natural appearance. Homeowners considering wood should also account for their preferred finishing and ongoing maintenance plan.

Composite Decking

Composite decking offers a clean, consistent appearance and reduced routine maintenance. Product selection, color, board profile, fastening method, fascia, and coordinating components can influence the finished project.

Trex Decking

Trex decking is available in multiple product collections, colors, and finish options. As a Trex Pro Certified contractor, TGR General Construction can help homeowners evaluate Trex options for their deck design, appearance goals, and long-term use.

What Happens After You Use the Calculator?

Review your planning range

Use the estimate to consider the approximate size, material, railing, and stair configuration that fits your goals.

Schedule a deck consultation

Connect with TGR General Construction to discuss your home, yard, preferred materials, and how you want to use the finished deck.

Evaluate the property and project requirements

Our team will review the proposed deck location, access, elevation, existing structures, layout, framing needs, and other project-specific details.

Confirm materials and design

We will help define the decking material, railing system, stairs, layout, and finish details included in the scope.

Receive a project-specific proposal

Your proposal will reflect the details confirmed during the consultation and evaluation.

Request an estimate for a deck replacement or new installation.

Schedule Your Deck Consultation
Beautiful outdoor deck built by TGR General Construction with plants and scenic view.

Why Work With TGR General Construction?

TGR General Construction LLC is a Tigard-based contractor providing custom deck construction and deck replacement throughout the Portland metro area.

Our team approaches each deck project with clear planning, reliable communication, and quality craftsmanship. With approximately 480 completed deck projects, we bring practical experience to deck layout, structural planning, material selection, railings, stairs, and finish details.

Verified Company Information

  • Founded in 2018
  • Approximately 480 completed deck projects
  • Trex Pro Certified
  • Oregon CCB #219625
  • BBB accredited
  • Insured and bonded
  • Best of Houzz Service 2025 and 2026
  • Google Guaranteed
  • Yelp Guaranteed
  • Local office in Tigard, Oregon

Deck Cost Calculator FAQs

Yes. The calculator is available as a complimentary planning resource and does not require you to submit contact information to view your estimate.

No. The result is a general planning range. TGR General Construction provides formal project pricing after reviewing the property, design, materials, structural requirements, access, permitting needs, and complete scope.

Yes. The calculator can provide a preliminary range for a deck replacement. Demolition, disposal, existing structural conditions, and framing requirements will be evaluated separately during the consultation.

Yes. Select the applicable Trex or composite decking option in the calculator. Final pricing depends on the selected product collection, deck design, fastening system, fascia, railings, stairs, and project requirements.

The calculator can include a general railing allowance based on the railing type and approximate linear footage entered. Product selection, stair rails, corners, posts, and layout details will be confirmed during project planning.

The calculator can estimate stairs based on the number of steps entered. Final stair pricing depends on width, elevation, landings, railings, structural requirements, and design.

Permitting requirements vary by project and jurisdiction. Permit, engineering, and related requirements should be confirmed during the project review rather than assumed from the online calculator.

Enter the approximate finished square footage of the deck you are considering. You can use length multiplied by width for a rectangular deck or add multiple sections together for a more detailed layout.

Yes. Enter the same deck dimensions and features, then change the material selection to compare the general planning ranges.

TGR General Construction serves homeowners in Tigard, Portland, Lake Oswego, King City, Beaverton, West Linn, Tualatin, and nearby Portland-area communities.

Plan Your Deck With TGR General Construction

A deck calculator provides a useful starting point. A thoughtful consultation turns that starting point into a clear project plan designed around your home, property, materials, and goals.

TGR General Construction can help you plan a new deck, replace an existing deck, compare wood and composite materials, evaluate Trex decking, and coordinate railings, stairs, and finish details.

Business information:
TGR General Construction LLC
14865 SW 74th Ave #210, Tigard, OR 97224
Hours: 7:00am–6:00pm
Phone: (503) 270-0195

Schedule Your Deck Consultation
Architectural blueprints and construction plans for building projects.