Decks · Porches · Exterior structures

Deck engineering and exterior structure design.

Purdue Associates helps homeowners, contractors, and builders address structural questions involving new decks, porches, stairs, platforms, and modifications to exterior structures in the Salt Lake Valley.

Where engineering support can help

Deck projects often involve more than selecting joist sizes. Connections, ledger attachment, lateral load paths, footings, bracing, existing framing, and site conditions can all affect the appropriate solution.

  • New deck design

    Structural calculations and details for an appropriately defined deck or exterior structure.

  • Existing deck questions

    Assessment of specific structural concerns or proposed changes.

  • Connections and anchors

    Attention to load transfer between decking, posts, footings, and adjacent construction.

  • Plan-review support

    Engineering information responding to applicable reviewer comments within the agreed scope.

Starting a deck project

Helpful information includes the intended deck dimensions, height above grade, attachment to the existing building, approximate location, and any plans or sketches. We discuss the applicable requirements and the extent of the proposed structural work before offering services.

Questions we often discuss

Can you help with an existing deck?

Yes, for defined structural evaluation or modification questions, subject to accessibility and available information.

Do I need engineering for every deck?

Not necessarily. Requirements vary by design and jurisdiction. Your local permitting authority can identify the applicable submittal requirements.

Can you prepare structural details for a contractor?

When appropriate for the project and the licensed scope, engineering calculations and details may be included in the agreed deliverables.