Detail Draft and BOM - 50m2 Building

Scope of WorksResidential Steel Building – Complete CAD Drawings, Bill of Materials and 3D RenderProject Overview
I require a suitably qualified CAD Draftsperson / Building Designer with experience in steel-framed residential buildings to produce a complete set of construction drawings from my existing concept drawings.
A basic 2D CAD drawing has already been completed showing the overall building layout, steel frame arrangement and concrete foundation concept. The successful freelancer will develop these into a professional construction drawing package suitable for fabrication, costing and future engineering certification.
The drawings are to be prepared in AutoCAD (.DWG), ZWCAD (.DWG), or another compatible DWG-based CAD package. All source files must be supplied.
Deliverables
The completed package shall include, but not be limited to, the following.
1. Steel Frame Drawings
Produce complete steel fabrication drawings including:
Floor framing plan
Roof framing plan
Column layout
Beam layout
Bracing details
Connection details
Typical framing details
Roof framing elevations
Building elevations (North, South, East and West)
Steel section call-outs
Member sizes
Member lengths
Weld details where applicable
Bolt sizes
Hole sizes
Fabrication notes
The drawings are to clearly identify every structural steel member.
2. Steel Bill of Materials
Provide a complete steel schedule including:
Steel section designation
Length
Quantity
Weight (if available)
Total length
Total weight
Include all:
Columns
Rafters
Purlins
Bracing members
Plates
Angle brackets
Connection plates
3. Fastener Schedule
Provide a complete schedule for:
M10 structural bolts
Nuts
Washers
DynaBolts
Connection brackets
Angle brackets
The current concept uses:
75 × 75 mm angle brackets
M10 × 75 mm DynaBolts into concrete piers
M10 bolts through steel columns
The existing concept drawings already contain partial details which are to be incorporated into the final drawings.
4. Concrete Foundation Drawings
Produce complete foundation drawings.
The building is located on sloping ground.
The slab is a floating reinforced concrete slab supported on reinforced concrete piers.
Include:
Foundation plan
Pier locations
Pier numbering
Pier schedule
Typical footing details
Reinforcement details
Slab reinforcement
Slab sections
Typical construction sections
Finished ground levels
Existing ground profile
Concrete details:
Slab thickness: 120 mm
Floating slab
Constructed on engineered fill
External reinforced concrete retaining wall approximately 200 mm thick between piers
Concrete piers:
500 mm × 500 mm
Extend minimum 800 mm into natural ground
Heights vary from approximately 100 mm above finished ground level up to approximately 600 mm above ground level depending upon slope.
5. Roof Drawings
Produce roof plans showing:
Roof sheeting
Ridge
Roof pitch
Flashings
Insulation
Roof framing
Purlin layout
Roof covering:
Corrugated COLORBOND® steel
Colour: Surfmist White
Thickness: 0.48 mm
Insulation:
Ametalin ThermalBreak Roof and Wall Insulation
1350 mm wide
22.25 m roll
7.8 mm thick
There are no gutters.
Provide flashing details around the roof perimeter.
6. Wall Cladding Drawings
The external walls are to be clad using:
James Hardie HardieTex™
2440 × 1200 × 7.5 mm sheets.
Provide:
Complete wall cladding layout
Sheet numbering
Cutting schedule
Optimised cutting plan to minimise waste
Joint locations
Fixing details
Corner details
A complete material take-off is required.
7. Upper Wall Cladding
The upper approximately 850 mm of the external walls directly beneath the roof shall be clad using corrugated steel sheeting.
Requirements:
Corrugated sheeting follows roof line.
Bottom edge shall remain parallel with the finished concrete slab.
Drawings are to show the required angled cutting profile.
Include flashing details.
8. Windows and Doors
Produce window and door schedules.
Windows are fixed-pane windows with two sliding windows provided to each room as shown on the supplied sketches.
Provide:
Window schedule
Window numbering
Door schedule
Sizes
Elevations
Opening directions where applicable
9. Plumbing Drawings
Produce plumbing layout drawings showing:
Water supply
Waste
Sewer
Fixtures
Pipe routing
Floor penetrations
Only a practical residential layout is required.
10. Electrical Drawings
Produce electrical layout drawings including:
Lighting layout
Switches
GPO locations
Distribution board location
External lighting
Smoke alarms
Ceiling fans (where shown)
Conduit routes
The electrical drawings only need to be suitable for residential planning and coordination.
11. General Arrangement Drawings
Provide:
Site plan
Floor plan
Roof plan
Four elevations
Building sections
Typical wall section
Typical roof section
All dimensions shall be shown.
12. 3D Model
Produce a complete 3D model of the building.
The model shall accurately represent:
Steel frame
Concrete slab
Concrete piers
Roof
Cladding
Windows
Doors
Flashings
Roof insulation
13. Rendered Images
Provide high-quality rendered images including:
Front elevation
Rear elevation
Left side
Right side
Aerial view
Perspective view
Interior framing view
Files to be Supplied
The successful freelancer shall provide:
Native DWG files
PDF drawing set
3D model files (if applicable)
Rendered images
Bill of Materials (Excel and PDF)
Steel Schedule (Excel)
Window Schedule
Door Schedule
Cladding Schedule
Fastener Schedule
Concrete Schedule
Existing Information
The following information will be supplied to the successful bidder:
Existing 2D CAD drawings
Concept floor plans
Structural concept sketches
Building dimensions
Roof geometry
Foundation concept
Photographs if required
Freelancer Requirements
The successful freelancer should have:
Demonstrated experience preparing residential steel-frame construction drawings.
Experience with AutoCAD, ZWCAD, or compatible DWG CAD software.
Experience preparing fabrication drawings and Bills of Materials.
Experience producing realistic 3D renders.
Strong English communication skills.
Please provide examples of similar residential steel-frame projects completed.
Ownership
All drawings, models, calculations, schedules, Bills of Materials and associated intellectual property produced under this project shall become my exclusive property upon final payment.
No work may be reused, redistributed, or published without my written approval.
Notes
This project is for the preparation of a comprehensive drawing package based on an existing concept design. The successful freelancer is expected to identify any drafting inconsistencies, seek clarification where necessary, and produce a coordinated, professional set of construction drawings suitable for fabrication, quantity estimation, and submission to a structural engineer for final certification where required.

Final Deliverables and File Ownership
Upon completion of the project, the successful freelancer shall provide all deliverables in both editable native formats and PDF format.
The final submission shall include, as applicable:
Native CAD drawing files (.DWG) created in AutoCAD, ZWCAD, or another approved DWG-compatible CAD package.
PDF copies of every drawing sheet.
Native 3D model files (where applicable).
High-resolution rendered images (JPEG and/or PNG).
Bills of Materials and schedules in Microsoft Excel (.XLSX) and PDF formats.
Any supporting files, external references (XREFs), custom blocks, fonts, plot styles (CTB/STB), textures, linked files, and project resources required to fully open, edit, and reproduce the drawings without loss of information.
All files shall be supplied unlocked, unprotected, and fully editable.
Upon final payment, full ownership of all drawings, models, source files, Bills of Materials, schedules, renderings, and associated intellectual property shall transfer exclusively to the Client. The freelancer shall retain no ownership rights and shall not reuse, distribute, publish, or sell any part of the work without the Client's prior written consent.

 ... Show more