STN Engineering

Need permit-ready plans fast? STN Engineering LLC delivers high-quality architectural and structural documents with quick turnaround and outstanding communication. We specialize in helping homeowners, contractors, and property investors get their projects approved quickly and stress-free.

From simple remodels to full structural engineering packages—we provide everything you need to submit confidently to your local building department.

⭐ Why Clients Choose Us

✔ Fast Turnaround

Most projects completed in 2–5 business days.

✔ Clear, Accurate Plans

Detailed drawings that pass permitting the first time.

✔ Licensed Structural Engineers

Engineering letters, beam sizing, load calcs, structural analysis—professionally stamped when needed.

✔ Great Communication

We keep you updated from start to finish.

✔ Fair & Transparent Pricing

No surprises, no hidden fees—easy, predictable quotes.

⭐ Our Services

✔ Residential Design & Engineering

- Home additions & remodels

- Garage, carport, pergola & deck plans

- ADUs & basement layouts

- Structural inspections & engineering letters

- Plan corrections for permit reviewer comments

✔ Commercial & Industrial Plans

- Tenant improvement packages

- Drive-thru design & SLUP support

- Warehouse conversions

- Industrial bathrooms, kitchens, and utility spaces

- Site plans & code-compliance updates

⭐ Popular Projects

- Structural beam sizing for inspectors

- Stamped engineering letters

- Edit/markups on existing PDFs

- Permit-ready drawings for remodels

- Code compliance corrections after rejection

- Foundation, framing & roof plan updates

⭐ Service Areas

We work nationwide and have experience with permitting in multiple states including CA, TX, GA, NC, NJ, UT, MO, FL, and more.

⭐ Our Promise

When you hire STN Engineering LLC, you get reliable, responsive, and professional service—every single time.

We’re here to make your permit submittal smooth, easy, and stress-free.

Chad Spink, PM of STN ENGINEERING LLC

Email: [email protected]

Phone: (442) 567-1982

Website: stnengineering.com