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Deck guides, from the permit counter to the last post.

Plain-English guides for the deck you want to build: the drawings a reviewer asks for, what free designers leave out, the free AWC code guide table by table, and a pergola on top. Every number carries its source.

  • 16 guides
  • 81 questions answered
  • 14 sources from 5 publishers
  • Updated Nov 4, 2026

Four numbers worth knowing before you draw

For a single-level wood deck built to the AWC DCA6 guide. Guide rule: from the AWC DCA6 deck guide or the residential code. Depends: your building department, your soil or your frost line change it. Your building department decides what applies where you live.

Read them in this order.

Start with the drawings, then check what a free designer gives you, then read the code guide behind both.

  1. Step 1

    Get the drawings a reviewer wants

    The sheets a deck permit set needs, and what free designers leave off them.

  2. Step 2

    Read the deck code guide

    The AWC DCA6 guide in plain English, with a worked row for each table.

  3. Step 3

    Build a pergola

    Where the posts can land, how the pergola ties to the house, how footings are sized and what the permit office asks.

  4. Step 4

    Build a patio cover

    How a solid roof ties into the house wall, what snow and wind add, how the posts and footings are sized and what the frame costs.

  5. Step 5

    Price the build

    What a deck and a pergola cost in lumber, hardware and concrete, with the installed ranges from the cost sites named and dated.

The questions people ask first.

Each links straight to its answer, with the sources beside it.

  1. Why do you need a permit to build a deck?Deck permit requirements
  2. Where can I design a deck for free?Free designer vs permit set
  3. What size is a deck ledger board?Deck ledger board
  4. What happens if you don't put post below frost line?Deck footings
  5. How many stairs do I need for my deck?Deck stairs
  6. Can you build a pergola on an existing deck?Pergola over a deck
  7. Is it better to attach a pergola to a house?Pergola attached to house
  8. How deep should a post hole be for a pergola?Pergola footings

How the guides are checked.

The code guide first

The AWC DCA6 deck guide, the residential code and county pages come first. Every figure carries a source tag you can open.

Our choices are labeled

Where the designer makes a choice the code does not, the guide says it is our choice, not a requirement.

Tools compared as we found them

Other tools are described as we found them in November 2026, with their strengths named. We do not copy their screens.