Structural Engineering and Design in California

We perform a variety of structural engineering services for all types of buildings including wood, steel, concrete, masonry or tilt-up buildings, new homes, renovations, extensions, cottages, studios, guest houses, decks and patios.

Our structural design services are including foundation plans with footing, structural framing layouts with decking, joist and trusses, roof trusses, ceiling joists, and joist details, blown up connection details and quantity estimations with measurement sheets.

   Structural Engineering and Design in California

Please call Peyman Group [714] 496-8466 Mechanical Consultant Engineering in Orange County, CA Peyman Group NOW to have preliminary discussion about your Structural engineering and design project and immediate assistance by our experts.

 Some sample guidelines for structural plans followed by
Peyman Group [714] 496-8466 Mechanical Consultant Engineering in Orange County, CA Peyman Group designers are:

Use a minimum concrete ultimate compressive strength of 3000 psi at 28 days.

Specify size of aggregate and slump. Use 1-inch or ¾-inch minimum aggregate size, with smaller sizes only in very special cases.

Avoid thin sections or projections that may crack off when forms are removed. Chamfer column corners, exposed corners and edges.

Provide typical construction joint locations for concrete beams, joists and slabs.

Provide expansion joints, control joints and seismic-movement joints as required by the design, indicate their locations and details on drawings and coordinate with architectural enclosures and finishes.

Joints must be weather tight and provide lateral stability across the joint.

Where a concrete beam is monolithic with a concrete wall and negative beam reinforcing steel is embedded in the wall, include a detail that shows the preferred pour line and alerts the contractor not to pour wall without negative reinforcing in place.

Indicate openings, depressions and curbs on structural floor and roof plans.

Maintain a full depth of slab under depressions for ceramic tile, electric ducts or other construction.

Provide a typical column drawing indicating bar maximum slopes, locations of splices and reglets for shear-wall reinforcing.

When setting a rail post use non-shrink grout or equivalent (“Por-Rok” but not sulfur). Provide a #4 bar on each side of post in concrete.

If wood or steel studs are used in concrete buildings, indicate clear relationship between “face of concrete” and “face of studs”.

In masonry walls, base dimensions on modular size of the unit.

In concrete masonry walls, fill all cells except on free-standing site walls retaining no earth. Avoid bars larger than Number 8.

Clearly show the minimum concrete cover required for the intended fire protection rating.
Provide top-of-steel elevations at each column and change of level on structural drawings for ease of reference by steel detailers and erectors.

For exterior steel work specify sections with a thickness of ¼” or greater.

Indicate required camber on all tapered steel girders and steel trusses.

Keep steel floor beams to L/D equal to or less than 24.

Provide erection bracing for tapered girders. Web thickness for all built-up sections shall be at least 3/16". Provide flange to web welds to comply with AISC specification. Use stiffener plate welded to top flange and to web where ridge occurs.

Comply with maximum width-to-thickness ratio requirements of AISC for projecting elements under compression. Apply requirements to railing parts.

Field weld or use cadmium plated counter-sunk flat head machine screws, to prevent warping in galvanizing bath.


Specify cost effective size, length and type of welds. Use standard weld symbols and consider fillet welds where adequate.

Make groove welds "full penetration" on structural welds such as tapered girder flanges.

On welded assemblies to be hot-dip galvanized, avoid shop welding large areas, such as stair platforms, to prevent warping in galvanizing bath. Field weld and retouch galvanizing, or use cadmium plated counter-sunk flat head machine screws for field assembly.

Provide means of leveling for base plates, such as double nuts on anchor bolts.

No horizontal member depth to thickness ratio shall exceed 7.

Bottoms of sills on exterior foundation walls shall be not less than 12" above finished grade.

Design hold downs and size bolts.

Provide special framing elevations where large openings occur, where columns pass through wall plates, or where framing is otherwise complex.


Provide complete roof framing plans showing walls. Clearly indicate corner framing and slope of roof.

Use nominal 6" wide studs for walls with the exception of non-bearing walls with no piping.

Clearly indicate connection of vertical shear elements to diaphragms. Be sure these shear elements do not produce a high concentration of stress over a small length.

Use minimum 1/2" thick plywood for roof sheathing. Indicate stagger of panels required for horizontal diaphragms.
Peyman Group [714] 496-8466 Mechanical Consultant Engineering in Orange County, CA Peyman Group performs Mechanical HVAC, Electrical, Plumbing, Fire-Protection, Civil, Structural Design and Construction Management for Residential, Commercial, Industrial & Educational Buildings.

"Precision is our Guideline.
Our Services yield Authentic Design.
Our Mission is Precision and Constant Improvement in our Performance to attain Client's Satisfaction, Trust and Peace of Mind!"

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*Note : Some of the pictures on this website are taken at STV INC, & L & D Engineering,
the previous Companies Mr. Peyman has worked at as a Mechanical Engineer
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