Structural Engineering Plans for Texas Home Projects, Ready in About an Hour

Because the moment you put a roof on it, the city stops treating it as a patio and starts treating it as a structure.

A structure has to hold up under wind load. It has to sit on footings deep enough for the local soil. If it attaches to your house, the ledger connection has to be detailed, because a badly attached ledger is one of the most common causes of deck collapse.

Texas has no statewide residential building code. Each city adopts its own version of the International Residential Code and then amends it. That is why Austin, Houston, and Fort Worth all want something slightly different from you.

Some cities go further. The Colony, for example, requires an engineer seal on foundation plans and on patio cover plans when the cover attaches to the primary structure. Austin and Round Rock ask for engineered drawings on most patio covers.

Your neighbor's approved plan set will not get you approved. The rules change by city, and sometimes by project size within the same city.

It is a fair question, and the answer is not that firms are overcharging you.

A licensed structural engineer is billing you for their time and their professional liability. For a 400 square foot patio cover, most of that time goes into work that is genuinely repetitive: pulling the city's code sheet, sizing a beam from a standard table, drawing a footing detail, and formatting ten sheets to the department's submission standard.

That work is real. It is also the same work, over and over, across thousands of nearly identical backyard projects.

NALO automates the repetitive part. The engineering judgment that actually requires a licensed professional stays with licensed professionals, which is exactly where it belongs.

We want to be direct about this, because it protects you.

NALO is a software tool. It produces construction documents for residential projects that fall inside Texas Occupations Code Section 1001.056, which exempts certain buildings from the requirement that plans be sealed by a licensed engineer.

NALO is not a structural engineering firm. We are not a registered engineering firm with the Texas Board of Professional Engineers and Land Surveyors, and we do not provide sealed drawings or professional engineering services.

What this means for you: if your project qualifies for the exemption, you do not need a seal, and NALO plans are built for exactly that situation. If your project falls outside the exemption, you need a licensed Texas PE, and we will tell you that before you pay rather than after.

The exemption generally covers residential structures with a total floor area under 5,000 square feet and no clear span greater than 24 feet on the narrow side. It does not cover windstorm certification work or slab design on expansive soil that meets the IRC expansive soil classification.

Most backyard patio covers, decks, pergolas, and small ADUs sit comfortably inside those limits. Confirm your specific project with your city before you build.

• Step 1: Enter your address. The moment you type it, we load your city's building code. Setbacks, height limits, wind load requirements, and the exact sheet list your department expects.
• Step 2: Answer plain questions about your project. Dimensions, materials, how it attaches. No engineering vocabulary. Takes a couple of minutes.
• Step 3: Upload your photos and survey. A few shots of your property plus your survey document. We use them to place your structure accurately on the site plan.
• Step 4: Download your plan set. A 10-sheet PDF drawn to NCS and AIA standards at tabloid size. That is the same format your city's plan reviewer opens every day.

We stop you before the plan is generated, not after the city rejects it.

If your proposed patio cover sits two feet inside a required setback, you find out during the questions. The tool tells you the specific rule and the specific fix.

This is the part homeowners underestimate. Most permit rejections are not complicated engineering failures. They are setback violations, missing footing depths, or a ledger detail the reviewer could not find.

Checking those in real time is why the plans are built to pass on the first submission.

• Attached and freestanding patio covers
• Decks, including elevated decks
• Pergolas and shade structures
• Accessory dwelling units within the size limits
• Carports

If your project is outside these types, or larger than the exemption allows, the tool will tell you at the address step.

Sometimes the right answer is a firm, not software. Call a licensed Texas structural engineer if:

• Your structure spans more than 24 feet between supports
• Your project exceeds 5,000 square feet of floor area
• You need windstorm certification for a coastal county
• You are building a slab on expansive soil
• You are altering a load-bearing wall or an existing foundation
• Your city explicitly demands a sealed and signed drawing for your project type

We would rather send you to the right professional than sell you a plan your city will reject. Saving $700 on the wrong document costs you a month.

Your 10-sheet PDF is formatted to National CAD Standard and AIA layer conventions at tabloid size, which is what Texas building departments expect for residential submissions.

The set covers your site plan with the structure placed from your survey, framing and foundation details, elevations, and the code compliance notes your reviewer looks for.

Every dimension in the set was validated against your city's adopted code before the file was created.