01Contractor PM
Clashes found on site
A duct meets a beam after the ceiling grid is up. Rework, a variation claim and a week off the programme.
"Approved shop drawings on time. Fewer clashes on site. Less rework."
Engineering · BIM, coordination and design
BIM coordination and clash detection from one federated model.
We model to LOD 100–500, clear the clashes, check the structure, then generate the sheets and quantities from the same model. Our own tools do the repetitive part.
LOD100
Massing and symbols
An envelope and analytical lines: where the column and beams go, not their size.
Used for · Concept design, early cost
AIM United · In short
What is BIM coordination and clash detection?
BIM coordination combines the architecture, structure and MEP models into one federated model and resolves the clashes before work reaches site. AIM United runs clash detection in Navisworks, sends each clash to the team that owns it and takes quantities from the coordinated model. We coordinate projects in Saudi Arabia, the UAE and the GCC.
S-001The problemNot to scale
The model says one thing. The drawings, the site and the BOQ say three others.
Most delivery teams still keep the model, the shop drawings and the quantities in separate hands. Every revision has to be carried across by people. That is where clashes slip through and margins leak.
02Technical Director
Sheets redrawn every revision
Sets go out with missing views and duplicate names. Errors surface only at client review.
"Automation output needs as much checking as manual work."
03BIM Manager
Peak load, same team
A package lands and the team is already full. Outsourced models come back off the BEP, with coordinate problems to fix.
"External modellers won't follow our BEP."
04Commercial / QS
Quantities re-measured by hand
The BOQ is taken off PDFs, so it drifts from the model the moment the design moves.
"Which revision was this measured from?"
14%
of all construction rework in 2020 was caused by bad data: inaccurate, incomplete or inaccessible project information.
Source: Autodesk and FMI, Harnessing the Data Advantage in Construction, 2021Stage 02 · Coordinate
Find every clash in the model, not on site.
Services are tested against structure level by level. Click each clash to resolve it.
Clash register · L02–L03Test: MEP × STR
08Open clashes0 of 8 resolved
Hard clashes first, then clearance. Each fix is modelled, not just marked.
Stage 03 · Generate
The sheet set comes out of the model.
Slab, rebar, steel and MEP sheets, plus the quantity take-off, all generated from the coordinated model. Change the model, and they regenerate.
Sheet set · generated00 / 06 issued
Scroll to generate the set.
Sheets0
Redrawn by hand0
Concrete, m³0
Stage 04 · Check
Cut anywhere. Read the structure.
Scroll, drag the cut handle or use the slider, and orbit the model to read the hatched section. The readout checks beam L02 on grid 2 at the cut.
Section A–A · beam L02 / grid 2
Bay · positionA–B · 1.00 m
Design load w—
Moment at cut—
Shear at cut—
Steel required—
Provided—
Span / depth—
At grid—
Utilisation at cut · 0.00
Check basis: simply supported bays, 1.2G + 1.6Q, C40 concrete, 400 × 750 beam. Project design follows the code your client specifies (for example ACI 318, BS EN 1992 or SBC 304) and is signed off by a qualified engineer.
S-400What's includedSchedule of services
Five services. One model under all of them.
Take one, or take the chain. Each works inside your BEP, your templates and your CDE, and each hands the next one a model it can trust.
No.ServiceDeliverablesFormats
01
BIM modelling, LOD 100–500
Architecture, structure and MEP, modelled to the LOD your EIR asks for.
- Discipline models on your templates
- LOD matrix per element category
- ISO 19650 naming and model health report
RVTIFC 2x3 / 4NWCDWG
02
Coordination and clash detection
Hard, clearance and workflow clashes, tested by level and zone on a weekly cycle.
- Clash tests set up per trade pair
- Clash register with owner, priority and fix
- Coordination meeting packs
NWDBCFPDF reportXLSX
03
Structural analysis and design
Analysis models, member design and checks for RC and steel, to the code your client specifies.
- Analysis model and load take-down
- Calculation package
- Design fed back into the BIM model
ETABS / SAFERobotPDF calcs
04
Shop drawings
Slab, rebar, steel and MEP shop drawings, generated from the coordinated model on your title blocks.
- Slab GA and reinforcement layouts
- Bar bending schedules (BS 8666 shape codes)
- Steel connection, fabrication and erection sheets
- Coordinated MEP layouts and builders' work openings
DWGPDF setsBBS XLSXIFC
05
Quantity take-off from the model
Quantities tied to model element IDs, so they update when the model does.
- Concrete by element and level
- Rebar and structural steel tonnage
- MEP lengths and counts, structured to your BOQ method
XLSXCSVLinked to element IDs
S-500Proof · Schedule of quantitiesProject record
Measured in square metres, buildings and disciplines. Not in adjectives.
Quantities from AIM United's own project record in KSA. Each row names the project it comes from.
RefQuantityItemStatus
P-011,043,476 m²EV plant modelled to LOD 400Lucid Motors Manufacturing Plant, Phase 2, KAEC. MEP, civil, architecture and interiors, with clash resolution, LOD 500 as-builts and 4D.Ongoing
P-0294Buildings coordinated, LOD 400 to LOD 500Six Flags Qiddiya. MEP design modelling, coordinated shop drawings and multi-discipline clash resolution, including sitewide external power and lighting.Completed 2025
P-032D → 3DHospital MEP moved from drawings to a coordinated modelGharb Jeddah Hospital (Dr. Sulaiman Al-Habib). Clash detection across all MEP systems and construction-ready shop drawings.Completed 2024
P-043 disciplinesCoordinated in one federated modelSalboukh Data Centre, Riyadh. Civil, architectural and infrastructure BIM, with clash resolution for a data-centre environment.Ongoing
KSA
On government-funded projects, EXPRO's National Manual for Project Management requires design data and drawings to come from 3D models, a BIM Manager on large projects and COBie data in IFC. Giga-projects set their own BIM requirements in their EIRs and contracts.
Source: EXPRO, Project Automation Requirements and Deliverables Guideline (EPM-KE0-GL-000020), 202114%
of all construction rework in 2020 was caused by bad data, worth $88.69bn. A model that drives the drawings and quantities takes one source of that out.
Source: Autodesk and FMI, Harnessing the Data Advantage in Construction, 2021S-600How we deliver · Capture → EvolveSequence
The AIM United method, mapped to your package.
Engineering, with direction. Five steps, the same on a single slab package or a full tower. We start with a paid pilot: one level, one system, fixed fee.
01Capture
Capture
Your EIR, BEP, design drawings, templates and, for existing buildings, the site scan.
Scope, LOD matrix, programme
02Model
Model
Discipline models to the agreed LOD, on your templates, with health checks at every drop.
RVT / IFC, health report
03Automate
Automate
Clash tests, structural checks, sheet generation, schedules and take-off run from our own tools.
Clash register, calcs, sheets, QTO
04Deploy
Deploy
Issued into your CDE (ACC, Aconex or ProjectWise), on your title blocks and naming.
DWG, PDF, NWD, BCF, XLSX
05Evolve
Evolve
RFIs, revisions and site changes go into the model, and the set regenerates. As-built to LOD 500.
Revisions, as-built model
S-700Questions buyers ask6 items
01What is the difference between LOD 300, LOD 400 and LOD 500?
LOD 300 is precise geometry: size, shape and location you can coordinate against. LOD 400 adds fabrication detail such as rebar, connections and hangers, enough to produce shop drawings. LOD 500 is field-verified: the model matches what was built. We agree an LOD per element category before modelling starts.
02What is BIM coordination and clash detection, and who pays for it?
Coordination brings the discipline models together and tests them for hard clashes, clearance clashes and sequencing problems before anything is built. The appointment decides who pays: usually the main contractor or the lead consultant. Either way it costs far less to move a duct in the model than on site.
03What file formats do you deliver?
Native RVT on your Revit version, IFC 2x3 or IFC 4, NWC and NWD for Navisworks, BCF for issues, DWG and PDF sheet sets on your title blocks, and XLSX for bar bending schedules and quantities. We match the naming and folder structure in your BEP.
04What is the difference between shop drawings and as-built drawings?
Shop drawings show how an element will be made and installed: bar shapes, connection plates, service routes. They are issued before construction for approval. As-built drawings record what was actually built, after construction. We produce both, and keep them tied to the same model.
05Is BIM mandatory in Saudi Arabia?
For government-funded projects, EXPRO's National Manual for Project Management requires 3D-model-based design data, a BIM Manager on large projects and COBie data in IFC. On giga-projects the binding requirement is the client's EIR and contract. We model to it, and AIM United is certified to ISO 19650.
06Do you work to giga-project standards such as EIR, BEP and ISO 19650?
Yes. We work to the EIR and BEP your client issues, with ISO 19650 naming and information containers, inside the client's CDE. We start with a pilot package so your BIM lead can check the output against their standards before we scale.
S-900Contact · Request for informationReply in one working day
Send us one level. Judge the output yourself.
A paid pilot: one level, one system, fixed fee, credited against the full order if you go ahead. You get the model, the clash register, the sheets and the quantities.
- Your templates and title blocks
- Your BEP and naming
- Engineer-to-engineer review of the result