SketchUp Expert for Australian Timber Frame Cabin

# Australian Timber-Framed 6 m x 3 m Cabin - SketchUp & Construction Drawings ## Project Overview I need an experienced construction drafter to prepare a detailed SketchUp model and construction drawing set for a 6,000 mm x 3,000 mm timber-framed cabin in Victoria, Australia. The design, dimensions, materials and construction approach are substantially determined. This is not an architectural concept or rendering job. I need a practical, buildable, engineer-ready drawing set reflecting the NCC and relevant Australian timber-framing standards. The intended character is a simple, well-insulated Australian rural workshop/shed clad in reclaimed corrugated galvanised iron. ## Overall Building * Footprint: approximately 6,000 mm x 3,000 mm. * Conventional timber stud construction. * Single-slope skillion roof falling from high front wall to low rear wall. * Roof pitch: 15 degrees. * Internal rear/low wall height: approximately 2,400 mm. * Ceiling follows the roof line. * Approximate internal front/high wall height: 3,200 mm, subject to final roof build-up. * Front roof overhang: 1,000 mm. * Rear roof overhang: 400 mm. * Side eaves: approximately 200 mm. ## Roof Detail I do not want conventional plumb-cut rafter tails. * Rafters should terminate with a 90-degree square cut to the rafter length. * End faces remain perpendicular to the sloping roof plane. * Applies at both front and rear roof edges. * Do not use a conventional vertical fascia simply to hide this geometry. * Flashing and edge detailing should respect the roof slope. The 1 m front overhang is intentional and must be properly incorporated into the roof framing. ## External Materials * Walls: reclaimed weathered silver/galvanised corrugated roofing iron. * Roof: reclaimed weathered silver/galvanised corrugated roofing iron. * Existing patina and sheet variation are intentional. * New flashings, corners, cappings and trims: fresh silver galvanised or Zincalume-type metal. * No painted Colorbond-style external finish. * Appropriate membranes, wrap, cavities/battens, flashing and condensation control required. ## Windows and Doors I already have second-hand Monument-coloured aluminium framed double-glazed sliding doors and windows. * Internal reveals: white-painted timber. * Exact dimensions will be confirmed before construction. * Final framed openings to suit the actual supplied units. ### Front / High Wall * One large double-width aluminium sliding entry door. * One approximately 1,500 mm wide x 2,000 mm high window, offset beside the door. * Front elevation should remain open and glazed while retaining adequate bracing. ### End Walls Each 3 m end wall: * One approximately 1,500 mm x 1,500 mm double-glazed window, centrally positioned. ### Rear / Low Wall Two high-level horizontal windows, each approximately 2,000 mm wide x 500 mm high. * One above a future workbench/counter, positioned for an outward view while standing at the bench. * One above a future king-sized bed against the rear wall, on the right-hand side when looking at the cabin from the front. * Prefer a common head height if practical. * Exact sill heights and positions to suit these uses. All openings require suitable lintels, trimmers, framing, head/jamb/sill flashing and weatherproofing for corrugated metal cladding. ## Relocatable Sled / Floor Structure The cabin will initially sit on ground screws but may later be lifted and relocated. The floor is therefore to be designed as a substantial sled/skid-style chassis rather than a conventional fixed floor. Proposed bearer arrangement: * 3 longitudinal bearer lines running along the 6 m length. * Each bearer formed from 2 x 245 mm x 50 mm timber members side-by-side. * Total: 6 x 245 x 50 members forming 3 doubled bearers. * Bearers extend approximately 300 mm beyond the building at each end. * Overall bearer length approximately 6,600 mm. * Extended ends intended as useful lifting points and to allow possible rolling or controlled relocation. Relocation should be considered throughout the chassis design. Final lifting/relocation engineering may be separately verified. ## Ground Screws * Cabin initially supported on ground screws. * Layout to suit bearer spans and structure. * Connections must provide positive tie-down and lateral restraint during normal use. * Connections must allow later disconnection for relocation. Final ground-screw capacity and engineering may be separately verified. ## Bearer Blocking / Anti-Roll Restraint I specifically want substantial restraint between the three bearer lines. The doubled bearers must not rely only on floor joists to prevent rolling or twisting. Provide suitable: * solid blocking; * cross-members; * cross-bracing and/or straps; * end blocking; and * positive mechanical restraint. The floor/sled assembly should behave as one rigid chassis when lifted or moved, resisting bearer roll, twisting, racking and relative movement. ## Floor Joists and Insulated Floor Cassette * 190 mm x 45 mm timber floor joists. * Span approximately 3 m. * Approximately 450 mm centres. * Blocking/noggins as required. Floor build-up: * Australian hardwood floating floor. * Structural Yellow Tongue particleboard or suitable equivalent. * 190 x 45 joists with wool insulation batts between. * Underside fully enclosed with exterior-grade/structural plywood. The underside plywood is to protect insulation from wind, weather, vermin and debris, prevent sagging during relocation, and contribute to a strong enclosed floor cassette where appropriate. Drafter to recommend plywood thickness, fixing, sealing and moisture-management details so water cannot become trapped within the cassette. ## Wall Construction and Insulation * Conventional timber stud framing. * Drafter to determine/document stud sizes and centres, plates, lintels, trimmers, noggins, bracing, tie-down and connections. * External walls insulated with wool batts. * Wall build-up to address thermal bridging, condensation, vapour control, weatherproofing and cavity/batten requirements behind corrugated metal. The large front openings require proper bracing consideration. If portal framing or engineering is required, identify it clearly. ## Internal Walls * 12 mm marine plywood as finished wall lining. * Painted a slightly warm off-white. * No plasterboard. * Simple, deliberate joints and trims. * White-painted timber window and door reveals. ## Ceiling / Roof Insulation * Ceiling follows the 15-degree roof plane. * Internal ceiling lining: 12 mm marine plywood. * Ceiling plywood clear sealed, not painted. * Roof/ceiling insulated with wool batts. * Roof build-up to provide good thermal performance, suitable membrane/blanket, condensation control and ventilation where required. * A roof/ceiling cassette approach may be used if appropriate. * No flat ceiling. The thermal envelope should be continuous through floor, walls and roof/ceiling. ## Services No electrical, plumbing, drainage, gas, HVAC, communications or other services design is required. Scope is structure, envelope, insulation, openings, cladding and construction detailing. ## Required Drawings At minimum: * Cover sheet / drawing index. * General construction notes. * Dimensioned floor plan. * Bearer/skid layout. * Ground-screw layout. * Floor joist plan. * Bearer blocking / anti-roll detail. * Floor cassette and underside plywood details. * Ground-screw-to-bearer connection concept. * Extended bearer-end details. * Wall framing information. * Stud sizes and centres. * Bracing arrangement. * Lintel/header and large-opening framing. * Wall build-up and corrugated cladding details. * Roof framing plan. * Rafter sizes and centres. * Front, rear and side roof overhang details. * Square-cut rafter-tail detail. * Roof build-up and insulation/ventilation detail. * Four elevations. * Minimum two useful building sections. * Window and door schedules. * Window/door flashing details. * Key junction, tie-down and fixing details. ## SketchUp Requirement Preferred workflow: SketchUp Pro + SketchUp LayOut. Required deliverables: * Editable .skp model. * Editable .layout file. * Complete PDF construction drawing set. * DWG/DXF exports where practical. The model should use sensible groups/components, tags, scenes and naming so I can inspect and modify it later. ## Australian Experience / Standards You must have demonstrated experience preparing Australian residential or small-building timber-frame construction drawings. Drawings should reference: * NCC requirements applicable in Victoria. * Relevant Australian Standards, including AS 1684 where applicable. Identify items requiring separate engineering rather than treating drafting as structural certification. Likely examples include: * relocation/lifting loads; * final sled/bearer design; * ground-screw capacity; * unusual connections; * large glazed openings; and * 1 m front roof cantilever. The objective is a construction-ready and engineer-ready drawing package. ## When Responding Please provide: * examples of Australian construction drawings you personally prepared; * confirmation you work in SketchUp Pro and LayOut; * confirmation editable source files will be supplied; * your Australian timber-framing experience; * fixed price; * expected turnaround; and * any immediate concerns or suggested changes. Generic architectural rendering portfolios are not what I am looking for. I need someone who understands how Australian timber buildings are actually constructed and can document this design properly.

Project ID: 40633940