Structural BIM Services

Revit Structural Modeling, Construction Drawings, Tekla Detailing and Shop Drawings for Structural Engineers, Fabricators and Contractors

Whether you design structures or build them, Enphy’s structural BIM services take the production work off your desk. If you run an engineering firm, you send us sketches, markups, PDFs or CAD files, and we return Revit models and complete construction drawing sets. If you fabricate, erect or build, we provide Tekla detailing, shop drawings and quantities in structural steel, rebar, precast and cast-in-place concrete. We have supported clients in the USA, Canada, the UK, Europe, South Africa, Australia and New Zealand since 2014.

Share Your Drawings & Request a Quote

You are paid to engineer, yet much of your week goes on modeling, drafting and markups. Or the design is done, and now you need shop drawings and quantities fast enough to hold the fabrication schedule. Either way, our structural BIM services give you production capacity when you need it, without adding permanent staff.

What Are Structural BIM Services?

Structural BIM services are the creation and management of an intelligent 3D model of a building’s structure, usually in Autodesk Revit or Tekla Structures, and the drawings produced from it. The model holds foundations, columns, beams, slabs, walls, bracing, connections and reinforcement. Construction drawings, shop drawings, schedules and quantities are all generated from that one model, so a change made once updates everywhere.

For your project, that covers two stages. At design stage, Revit structural modeling turns your engineer’s design into a model and construction documents. At fabrication stage, Tekla detailing turns those documents into shop drawings, CNC files and quantities. We work at both stages.

Why the Structural Model Matters, By the Numbers

Since 2014, our structural BIM services team has produced models, construction drawings and shop drawings for engineers and fabricators across seven markets.

$31.3B

US rework in one year traced to poor project data and miscommunication

FMI and PlanGrid's Construction Disconnected study (2018) linked $31.3 billion of US rework to bad information and miscommunication.

40%

Of highly BIM-engaged contractors say BIM significantly cut rework

McGraw Hill Construction, The Business Value of BIM for Construction in Major Global Markets (2014).

500+

Projects delivered by Enphy across AEC and manufacturing

Across commercial, residential, healthcare and industrial work.

40–60%

Typical saving vs. adding in-house modelers and detailers

Clients who choose structural BIM outsourcing typically spend 40–60% less than hiring locally.

Where Structural Production Work Gets Stuck

If You Run a Structural Engineering Firm

Your design lives in sketches, calculations and redline markups, but turning it into coordinated Revit structural modeling and a full drawing set takes hours your team doesn’t have. Senior engineers end up drafting, DD sets wait weeks to become CDs, and every markup round pushes your issue date out. Hiring Revit staff for peak workload is slow and expensive.

If You Fabricate, Erect or Build

Once drawings are issued, your clock starts on shop drawings and approvals. Your detailing capacity rarely matches your bid volume, a quantity error in steel or rebar hits your margin, and a late approval holds up your shop and erection crew.

Structural BIM outsourcing with Enphy gives you that capacity without hiring: a modeling and drafting team if you design, and detailing support if you fabricate or build.

Where Structural Production Work Gets Stuck

Our Structural BIM Modeling Services

Choose the service you need, or combine several into one production package. Design-stage work is done in Revit and fabrication-stage work in Tekla Structures.

For Structural Engineering Firms
For Fabricators, Erectors and Contractors

Sketch to Revit Structural Model

Send us your hand sketches, marked-up plans, member schedules or analysis output, and we build the Revit model from them: foundations, columns, beams, slabs, walls, bracing and roof framing in concrete, steel, timber or masonry. Our structural BIM modeling services work to LOD 200–350 as your project stage needs, with member sizes, materials and marks carried as data, so your schedules stay correct.

Structural Construction Drawings

You get complete structural construction documents from our Revit structural modeling: general notes, foundation and framing plans, sections, elevations, details, and column, beam, footing and wall schedules. Because every sheet comes from one model, your plans, sections and schedules stay consistent through every revision.

DD to CD Conversion

Hand us your design development set and our structural BIM modeling services turn it into a full construction set. We complete sections, details and schedules, coordinate grids, levels and slab edges with the architectural model, and flag open design questions for your engineers to answer.

PDF to Revit and CAD to Revit Conversion

Your legacy drawings, consultant sets and scanned PDFs become intelligent Revit models for additions, renovations or re-issue. During PDF to Revit and CAD to Revit conversion, we log conflicts in grids, levels and member sizes for your team to resolve.

Redline Markup Updates

Mark up your PDFs however your team prefers. We update the model and sheets, add revision clouds and deltas, and update the revision schedule. Because our team works while you are offline, the time difference helps keep your revisions moving between review cycles. You can book markup updates on their own or as part of wider structural BIM services.

Point Cloud to BIM for Renovation and Retrofit

For renovation, strengthening and change-of-use projects, our structural 3D modeling services turn laser scans of your existing building into an as-built structural model, so your retrofit design starts from measured reality. See our Point Cloud to BIM Services.

Tekla Structural Modeling (LOD 400)

We build a fabrication-level Tekla model from your engineer’s issued drawings or IFC model: members, connections, plates, bolts, welds, embeds and reinforcement, organized by phase and sequence. Your shop drawings, CNC files and quantities all come from that model, and you receive the 3D model as IFC for review and coordination.

Structural Steel Shop Drawings

Through our structural steel modeling, you get assembly and single-part drawings, erection drawings, anchor bolt and embed plans, bills of material, and NC/DSTV and DXF files for your CNC equipment. For our full steel scope, see Structural Steel Detailing.

Rebar Modeling and Detailing

With 3D rebar modeling in Tekla or Revit, you see congested joints before they reach your formwork. You receive placing drawings and bar bending schedules to ACI, CRSI, BS 8666, AS or SANS conventions. See also Rebar Detailing Services.

Precast Concrete Modeling and Detailing

Our structural 3D modeling services cover precast wall panels, double tees, hollow-core planks, beams, columns and stairs, with lifting inserts, embeds and connection hardware, followed by the piece drawings, erection drawings and piece schedules your plant needs.

Cast-in-Place Concrete Modeling

If you pour concrete, our structural BIM modeling services give you pour breaks, slab edges, depressions, openings, sleeves and embeds as concrete outline and embed plans, so your formwork crew and the MEP trades work from the same geometry.

Quantities and Material Takeoffs

You get steel tonnage by member type, rebar weight by bar size, concrete volumes by pour and precast piece counts, extracted from the model into Excel. Structural quantity takeoff from BIM is faster and easier to audit than takeoff from 2D sheets. For full bid estimates, see Structural Steel Estimation Services.

Sketches, Redlines or Issued-for-Construction Drawings?

Send us what you have. We'll review it and send you a proposal for your structural BIM services package, with scope, schedule and price.

Request a Quote

Structural BIM Services at Every Level of Development

LOD defines how complete each model element is. We follow the BIMForum LOD Specification in North America and ISO 19650 in the UK and Europe, and agree the target LOD with you before modeling begins.

LOD 200

Generic members with approximate sizes and locations
Schematic design, early engineering studies

LOD 300

Specific member sizes, materials, locations, slab edges and openings
Design development, construction documents, permit sets

LOD 350

LOD 300 plus connection zones, embeds, sleeves and penetrations
Coordination with architecture and MEP

LOD 400

Fabrication detail: connection plates, bolts, welds, rebar, precast inserts
Shop drawings, CNC files, fabrication and erection

LOD 500

Field-verified as-built geometry
Renovation, retrofit and handover

If you are an engineering firm, you will usually need LOD 300 for construction documents. If you fabricate or install, you need LOD 400 structural BIM, detailed enough to cut, drill, bend and place from.

Who Uses Our Structural BIM Services

Structural engineering firms and consultants: Revit structural modeling, construction drawings, DD to CD sets, PDF and CAD conversion, and redline updates.
Steel fabricators: shop drawings, IFC models, CNC files and tonnage reports.
Steel erectors: erection drawings and anchor bolt plans.
Rebar fabricators and placers: 3D rebar models, placing drawings and bar bending schedules.
Precast manufacturers: piece drawings and erection drawings.
Concrete and general contractors: concrete outline and embed plans, quantities, and structural 3D modeling services for coordination.

Structures We Model

We provide structural BIM services and structural 3D modeling services for new-build, extension and retrofit work, including:

Commercial and mixed-use

offices, podiums and towers.

Multi-family residential

post-tensioned floors and timber frames.

Healthcare and education

long-span floors and heavy services.

Industrial and warehouse

portal frames, crane girders and mezzanines.

Parking structures

post-tensioned and precast decks.

Existing buildings

retrofit and change of use.

Software and Regional Standards

We use Autodesk Revit for design-stage models and construction documents, Tekla Structures for steel, rebar and precast detailing, AutoCAD, and ReCap for point clouds. Our structural 3D modeling services follow your engineer’s design and the detailing conventions of the codes it was designed to: AISC and ACI in the USA, CSA in Canada, Eurocodes and BS 8666 in the UK and Europe, AS and NZS in Australia and New Zealand, and SANS in South Africa.

Why Outsource Structural BIM Services to Enphy

Structural BIM outsourcing only pays off when the work arrives ready for you to use. Here is what you get with us:

Design stage and fabrication stage under one roof

the same team handles Revit structural modeling for engineers and Tekla detailing for fabricators, so we understand what each drawing is for and who uses it next.

Consistent drawing sets

our structural BIM modeling services produce your plans, sections and schedules from one model, so the set stays consistent through every revision.

Two-stage quality review

every deliverable gets a self-check and an independent senior review against your markups and drawings.

Why Outsource Structural BIM Services to Enphy

Questions tracked, not guessed

your named project lead keeps a query log and tracks each open item until your engineer answers it.

Time-zone advantage

our team works while North America, the UK and Europe are offline, which helps keep your production moving. Offshore structural BIM capacity scales up or down with your workload.

Secure data handling

NDAs signed before files move, access-controlled servers, and your files never reused on other projects.

Is Structural BIM Outsourcing Right for You?

It works best when you can share clear inputs, such as sketches, markups or drawings, along with a target LOD or deliverables list and one point of contact. It suits production modeling, drawings, DD to CD conversion, markups, detailing and quantities. Structural BIM services are not a substitute for structural engineering: Enphy models and drafts the design, while analysis, member and connection design, and sealed drawings stay with your licensed engineer. When information is missing or conflicting, we raise it in a query log, before or during modeling, so your engineer resolves it instead of us guessing.

How Our Structural BIM Services Work

You end up with a clean, consistent model and drawing set you can review, issue or fabricate from.

Share your inputs

sketches, redlined PDFs, CAD files, an existing model or issued-for-construction drawings.

Receive a proposal

we review your files and send you the deliverables, LOD, schedule and price.

Kick-off and query log

we raise questions before and during modeling and track each one until it is answered.

Modeling and drawings

our structural BIM modeling services team shares progress models and sheets for your review.

Two-stage QA

self-check, senior review, member-size and markup check, and model audit.

Delivery and revisions

RVT, IFC, DWG, PDF, NC files and schedules as required, with revisions handled through each markup round.

Have a Structural Project Coming Up?

Tell us what you are working on and share the drawings you have. We'll review them and come back with a proposal for our structural BIM modeling services.

Discuss Your Project

Structural BIM Case Studies

Sketch to Revit Model and Construction Drawing Set

Project type: Mid-rise mixed-use building with a concrete podium, for a structural engineering firm

Challenge: The design was complete as hand sketches and analysis output, but the team had no Revit capacity to produce a permit set before the submission date.

Our scope: Our structural BIM modeling services team used Revit structural modeling to build an LOD 300 model from the sketches, logged open questions, and produced the full drawing set, updating it through each redline round.

Deliverables: Revit model · Foundation and framing plans · Sections and details · Schedules · RVT, DWG and PDF sets

Outcome: The engineers stayed on design and review while structural BIM outsourcing handled production, without adding permanent staff.

DD to CD Conversion with Redline Updates

Project type: Commercial office building in composite steel and concrete, for a structural consultancy

Challenge: The consultancy had a DD model and an issue date its in-house team could not meet alongside other live projects.

Our scope: Using Revit structural modeling, we developed the model from DD to CD, completed details and schedules, coordinated with the architectural model, and returned each markup round with revision clouds and an updated revision schedule.

Deliverables: Construction-stage Revit model · Full CD set · Query log · RVT, PDF and IFC exports

Outcome: Open design items surfaced early, and structural BIM outsourcing kept markup rounds in step with the consultancy’s review cycle.

Retrofit Model from Point Cloud and Legacy Drawings

Project type: Conversion of an existing steel-framed industrial building to commercial use, for a structural engineering firm

Challenge: The original drawings were incomplete scanned PDFs, and the strengthening design depended on an accurate picture of the existing frame.

Our scope: Our structural 3D modeling services combined the client’s point cloud with the legacy PDFs, using Revit structural modeling to build an as-built model. We recorded where the building differed from the old drawings, then drew up the strengthening design.

Deliverables: As-built Revit model · Register of differences · Existing and proposed framing plans · Strengthening details

Outcome: With these structural BIM services, the engineers designed the retrofit on measured geometry rather than assumptions.

Tekla Steel Detailing for a Warehouse Package

Project type: Warehouse and logistics facility with structural steel framing and a mezzanine, for a steel fabricator

Challenge: The fabricator’s detailers were fully booked, and it needed fabrication-stage structural BIM services with drawings released in sequence.

Our scope: Our structural BIM modeling services built an LOD 400 Tekla model and produced the shop drawings from it, released by erection sequence so fabrication could start early. The model was shared as IFC.

Deliverables: IFC model · Assembly, single-part and erection drawings · Anchor bolt plans · NC/DSTV files · Bills of material and tonnage report

Outcome: Through structural BIM outsourcing, the fabricator approved and fabricated in sequence, with tonnage taken directly from the model.

What Our Clients Say

★★★★★

“Working with a team in a different time zone keeps our production moving while we focus on design and client meetings. Their structural BIM services have given our engineers their time back for engineering.”

Principal, Structural Engineering Firm, TX, USA

★★★★★

“Their shop drawings are clear and arrive in the sequence our shop needs, and the NC files go straight to the machines.”

Project Manager, Steel Fabricator, ON, Canada

★★★★★

“Their shop drawings are clear and arrive in the sequence our shop needs, and the NC files go straight to the machines.”

Project Manager, Steel Fabricator, ON, Canada

★★★★★

“Enphy's structural BIM services gave us an experienced detailing team when our order book filled up, so we could commit to production dates without adding permanent overhead.”

Engineering Manager,
Precast Manufacturer, QLD, Australia

Frequently Asked Questions About Structural BIM Services

What do structural BIM services include?

If you are an engineering firm, structural BIM services include Revit models built from sketches or markups, construction drawing sets, DD to CD conversion, PDF and CAD to Revit conversion, redline updates and point cloud to BIM for existing buildings. If you fabricate, erect or build, they include Tekla detailing, steel, rebar and precast shop drawings, erection drawings, IFC models, CNC files and quantities.

Do you do structural design or engineering calculations?

No. Our structural BIM services model and draft the design produced by your engineers or the engineer of record. Analysis, member design, connection design and sealed drawings remain the responsibility of a licensed engineer in your jurisdiction. Where information is unclear, we raise questions rather than make design decisions.

Can you work from hand sketches and marked-up prints?

Yes. Sketch to Revit structural modeling is one of the most common requests we get from engineering firms. Scanned sketches, marked-up prints and member schedules are enough to start; anything unclear or conflicting goes into a query log for your engineer.

What do fabricators receive from your Tekla detailing?

With our fabrication-stage structural BIM services, you receive the drawings and files your shop and field teams use: assembly and single-part drawings, erection drawings, anchor bolt and embed plans, rebar placing drawings or precast piece drawings, bills of material, NC/DSTV and DXF files, and quantity reports. The 3D model is shared in IFC format.

What is the difference between structural BIM and structural 3D modeling services?

Structural 3D modeling services produce geometry: a 3D picture of the frame. Structural BIM adds data such as member sizes, materials, marks and quantities, so drawings, schedules and takeoffs can be generated from the model. Every model we deliver is built as BIM, even when you only ask for structural 3D modeling services.

How much do structural BIM services cost?

It depends on your structure’s size and system, the deliverables, the LOD and the quality of your inputs. We provide a project-based quote after reviewing your files, and clients who choose structural BIM outsourcing typically save 40–60% compared with local production. Send us your files and we will send you a proposal.

Is it safe to outsource structural BIM to India?

Yes. Structural BIM outsourcing to India is safe with the right controls. When you outsource structural BIM to Enphy, we sign an NDA before any files are shared, store your data on access-controlled servers and never reuse your files.

Start Your Structural BIM Project with Enphy

Send us your sketches, redlines, drawings or model. We’ll review them and send you a proposal for structural BIM outsourcing, with scope, schedule and price.

Email:

[email protected]

Phone Number:

+1 (408) 641-3144

+91 79 4000 8171

Send Us Your Drawings – Get a Fixed Quote in 24 Hours

Structural BIM Services

Revit Structural Modeling, Construction Drawings, Tekla Detailing and Shop Drawings for Structural Engineers, Fabricators and Contractors

What Are Structural BIM Services?

Why the Structural Model Matters, By the Numbers

US rework in one year traced to poor project data and miscommunication

Of highly BIM-engaged contractors say BIM significantly cut rework

Projects delivered by Enphy across AEC and manufacturing

Typical saving vs. adding in-house modelers and detailers

Where Structural Production Work Gets Stuck

If You Run a Structural Engineering Firm

If You Fabricate, Erect or Build

Our Structural BIM Modeling Services

For Structural Engineering Firms

For Fabricators, Erectors and Contractors

Sketch to Revit Structural Model

Structural Construction Drawings

DD to CD Conversion

PDF to Revit and CAD to Revit Conversion

Redline Markup Updates

Point Cloud to BIM for Renovation and Retrofit

Tekla Structural Modeling (LOD 400)

Structural Steel Shop Drawings

Rebar Modeling and Detailing

Precast Concrete Modeling and Detailing

Cast-in-Place Concrete Modeling

Quantities and Material Takeoffs

Sketches, Redlines or Issued-for-Construction Drawings?

Structural BIM Services at Every Level of Development

LOD 200

LOD 300

LOD 350

LOD 400

LOD 500

Who Uses Our Structural BIM Services

Structures We Model

Commercial and mixed-use

Multi-family residential

Healthcare and education

Industrial and warehouse

Parking structures

Existing buildings

Software and Regional Standards

Why Outsource Structural BIM Services to Enphy

Design stage and fabrication stage under one roof

Consistent drawing sets

Two-stage quality review

Questions tracked, not guessed

Time-zone advantage

Secure data handling

Is Structural BIM Outsourcing Right for You?

How Our Structural BIM Services Work

Share your inputs

Receive a proposal

Kick-off and query log

Modeling and drawings

Two-stage QA

Delivery and revisions

Have a Structural Project Coming Up?

Structural BIM Case Studies

Sketch to Revit Model and Construction Drawing Set

DD to CD Conversion with Redline Updates

Retrofit Model from Point Cloud and Legacy Drawings

Tekla Steel Detailing for a Warehouse Package

What Our Clients Say

Frequently Asked Questions About Structural BIM Services

What do structural BIM services include?

Do you do structural design or engineering calculations?

Can you work from hand sketches and marked-up prints?

What do fabricators receive from your Tekla detailing?

What is the difference between structural BIM and structural 3D modeling services?

How much do structural BIM services cost?

Is it safe to outsource structural BIM to India?

Related BIM, Drafting and Detailing Services

Start Your Structural BIM Project with Enphy

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