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Estimating decks and porches

Prices for decks and porches, what drives the cost and how to structure the estimate, for remodeling contractors bidding the work.

Deck bids come down to the material and the details. The surface board accounts for most of the difference between options, but railings, stairs, footings and the ledger connection are where bids go wrong. Price the structure and the surface separately so you can offer options.

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New deck prices

Q4 2026 pricing. National figures are the median of 50 metro areas. Ranges are rounded to the nearest $50, or $100 from $5,000 up.

  • Pressure treated

    $4,150 to $15,600

    150 to 500 square feet

  • Cedar

    $5,700 to $21,700

    150 to 500 square feet

  • Redwood

    $5,600 to $21,200

    150 to 500 square feet

  • Composite

    $9,300 to $34,300

    150 to 500 square feet

Labor and materials

For a typical job, nationally. Labor rates move more from place to place than materials do.

Labor 38%Materials 62%

How the estimate is structured

The cost categories an estimate for this work breaks into:

  • Project preparation
  • Decks and porches
  • Project finalization

What drives the cost

  • Decking material

    Pressure treated, cedar, redwood and composite each price differently on the same frame. Composite costs more up front and less to maintain, which is worth saying in the proposal.

  • Railings

    Railing runs the perimeter, so a long, narrow deck needs more of it than a square one with the same area. Material and baluster style matter as much as length.

  • Height and stairs

    A deck off a first-floor door with a few steps is simpler than a second-story deck with long stair runs, taller posts and more bracing.

  • Footings and structure

    Footing count and depth depend on the frame and your frost line. Soil, slope and digging access change the labor.

  • Tear-off and repairs

    Removing an old deck, or finding rot in a frame you planned to reuse, adds demolition and framing. Check the ledger and joists before you bid a resurface.

  • Porch roofs and ceilings

    A covered porch adds a roof, a ceiling, columns and often lighting. A porch on a concrete slab and one on a deck structure are built differently.

Building the estimate

Structure, surface, details

Break the bid into the frame, the surface and the details. Clients compare decking materials, and you can show two surfaces on the same frame without repricing the structure.

  • Removal of the old deck, if there is one
  • Footings, posts, beams and joists
  • Ledger and flashing at the house
  • Decking surface
  • Railings and balusters
  • Stairs and landings
  • Skirting or lattice
  • Stain, paint or sealer
  • Lighting and electrical, when they're included

Resurface or rebuild

If the frame is sound, a resurface replaces the boards and keeps the structure. Inspect before you promise it: soft joists or a failing ledger turn a resurface into a rebuild.

Porches

A porch adds a roof, ceiling and columns, and sometimes flooring and electrical. Price new and replacement porches separately: a replacement adds tear-off, and may reuse a slab or footings.

Deck and porch templates in Clear Estimates

Templates cover new decks in pressure treated, cedar, redwood and composite; deck surface, railing and step replacement; lattice skirting; deck cleanup, staining and painting; new and replacement porches on a slab or a deck structure at basic and premium finish; and porch ceilings and flooring.

Local pricing

Prices for decks and porches in each metro area, against the national median.

Questions

What should a deck estimate include?

Removal of any old deck, footings and framing, the ledger and flashing, the decking surface, railings, stairs, skirting and finish. Add lighting or other extras as their own lines.

Should composite and wood decks be priced differently?

Yes. Composite boards and railings cost more than pressure treated or cedar, and some systems call for different fasteners or joist spacing. Price each as its own option so the client sees the difference.

Can I add pergolas, lighting or built-ins?

Yes. Add any item the job needs as its own line, with your price or a sub's quote.

Can I build the estimate on site?

Yes. Clear Estimates works on a phone, so you can measure, build the estimate and send the proposal before you leave the property.

Estimate decks and porches with prices for your area

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