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Darley Aluminium Shop Drawings: A Fabrication Guide
Last Updated: November 10, 2026
Quick Summary
Darley aluminium fabrication shop drawings translate a Darley system into buildable window and door details, fixing every opening size, profile and fixing point before fabrication. A complete set includes elevations, head/sill/jamb sections and details, opening sizes with tolerances, matched extrusion profiles, a hardware schedule and installation guidance. Run a checklist and consolidate review comments into a single revision before sign-off.
- Confirm the Darley system selection in writing, because a verbal choice that changes after drafting forces a full redraw.
- Chained dimensions are the most common failure; use a fixed grid instead so one missing link cannot make a run unbuildable.
- A second drafter who did not produce the set should run the internal checklist before issue.
- Issue PDFs for review and native CAD files for coordination, naming every file with project, sheet number and revision.
- Sign-off must be a marked-up set or written response recorded against a specific revision number before sheets go to the factory floor.
Table of Contents
- What Darley Aluminium Fabrication Shop Drawings Must Contain
- Aluminium Window Fabrication Details That Drive the Drawing
- Aluminium Window Shop Drawing Checklist Before You Issue
- The Window Shop Drawing Approval Process, Step by Step
- Drawing Conventions, Dimensions and Technical Checks
- File Formats, Version Control and Coordination Across Vendors
- Submitting Your Darley Shop Drawings to BluePrint Facade
- Frequently Asked Questions
What Darley Aluminium Fabrication Shop Drawings Must Contain
Darley aluminium fabrication shop drawings are the project-specific documents that translate a Darley system into buildable window and door details. They fix every opening size, profile, and fixing point before anything reaches the factory floor. This guide from BluePrint Facade sets out what a compliant set contains, how it moves through approval, and where sets usually fail.
The stakes are simple. A drawing missing a sill detail or a subhead dimension can hold up the job while fabricators wait for clarification.
A complete Darley set covers:
- Elevations showing every window and door in the wall
- Sections and details through head, sill, and jamb
- Opening sizes with tolerances noted
- Extrusion profiles matched to the Darley system used
- Hardware schedule with compatible fittings listed
- Installation guidance for site conditions
The National Construction Code sets the performance baseline these details must meet. For a visual walkthrough of sheet types, see our facade shop drawing examples.
Aluminium Window Fabrication Details That Drive the Drawing
Fabrication details are the decisions made before drafting starts. Get them wrong and every sheet inherits the error.
Three details cause most rework:
- System selection. Darley offers several window and door ranges. Each has its own profile geometry and hardware set.
- Opening sizes. Frame sizes must account for clearance and structural movement, not just the architectural nominal.
- Hardware compatibility. Handles, hinges, and locks must match the chosen system.
Hardware choices shape the drawing, so confirm the hardware schedule before you draw a single elevation.
Aluminium Window Shop Drawing Checklist Before You Issue
An aluminium window shop drawing checklist catches errors before they cost anyone time. Run it every time, on every set.
- Every opening shown in elevation with a unique mark
- Dimensions tied to a fixed grid, not chained
- Head, sill, and jamb details drawn for each condition
- Profile references match the Darley system specified
- Hardware listed and checked for compatibility
- Glass type and thickness noted per opening
- Revision cloud and number on every change
- Drawing title block complete with date and status
Watch out: chained dimensions are the most common failure we see. One missing link and the whole run is unbuildable. Use a fixed grid instead. Our 2026 glazing compliance checklist covers the NCC and AS 1288 documentation side in more depth.
The Window Shop Drawing Approval Process, Step by Step
The approval process runs in five stages, and each one has a clear owner. Most guides list the stages and stop there. The quality of inputs at the start and the handling of comments at the end both affect whether a set is signed off.
- Brief and gather. Collect the architectural set, the Darley system selection, the hardware schedule, the structural movement allowances, and the site conditions for every opening. Confirm the drawing register and the revision of the architectural set you are working from, drafting against a superseded plan is the single most common cause of a rejected submission.
- Draft. Produce elevations, sections, and details for every condition. Mark each opening with a unique identifier that matches the architectural schedule so reviewers can cross-reference without guessing.
- Internal check. Run the checklist before anything leaves the office. A second drafter who did not produce the set should run it, the person who drew the detail is the least likely to spot its error.
- Submit. Issue to the architect, builder, and facade consultant together, with a transmittal that lists every sheet, its revision, and the date. A submission without a transmittal is a submission that will be reviewed against the wrong revision.
- Review and revise. Consolidate comments into a single revision, then reissue. Record every comment and its disposition in a comment register so nothing is closed without a documented response.
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What to gather before drafting starts. Structural movement allowance at each head and the finished floor level relative to the sill are inputs that drafting depends on. Without both, the head detail and the sill detail are guesses. Confirm the Darley system selection in writing, because a verbal system choice that changes after drafting starts forces a full redraw of every profile reference.
How review comments should be handled. Comments arrive from three directions at once, architect, builder, and facade consultant. Consolidate them into a single revision and issue one response document that addresses each comment by number. Issuing three separate revision rounds is how projects lose weeks, and it makes the comment register impossible to close out.
What sign-off actually requires. Sign-off is not a verbal acceptance on a call. It is a marked-up set or a written response confirming that every comment has been addressed and that the current revision is the one to fabricate from. Get that confirmation in writing and record the revision number in the project register before any sheet goes to the factory floor.
Watch out: a set that is approved but not recorded against a specific revision number will be fabricated from whichever copy the factory has on file. Our article on preventing RFI delays explains how to close that loop faster.
The approval process runs in five stages, each with a clear owner.
| Stage | What to do |
|---|---|
| Brief and gather | Collect architectural set, Darley system selection, hardware schedule, movement allowances |
| Draft | Produce elevations, sections and details; mark each opening uniquely |
| Internal check | Run the checklist; a second drafter checks the set |
| Submit | Issue to architect, builder and facade consultant with a transmittal |
| Review and revise | Consolidate comments into a single revision and reissue |
Drawing Conventions, Dimensions and Technical Checks
Conventions keep a set readable across vendors. Without them, two drafters produce two different drawings of the same window. The conventions below are the minimum, and the technical checks that follow are where most sets actually fail.
Stick to these rules:
- Dimensions in millimetres, always
- Elevations at a consistent scale across the set
- Section marks cross-referenced to detail sheets
- North point and grid lines on every plan
- Revision table on the title block
How to read the sheets. An elevation shows the opening in the wall with its mark, its overall size, and its position relative to the grid. A section cuts through the head, sill, or jamb and shows the profile, the fixing, and the clearance.
Tolerances and movement. Every head detail needs a movement allowance, and every sill detail needs a drainage path. A frame dimensioned to the nominal opening with no allowance for structural movement will bind once the building settles. Check that the allowance is shown on the detail, not assumed by the fabricator.
Hardware callouts. Hardware should be called up by type and by the routing it requires, not just by product name. A multipoint lock needs a specific rout and a wider stile, and a drawing that shows the lock without the rout will be built to the wrong profile.
Extrusion references. Every profile reference must match the Darley system specified for that opening. A profile reference copied from a previous project is the most common source of a set that looks complete but cannot be built.
Common errors to check before issue. Chained dimensions are the most common failure, one missing link and the whole run is unbuildable, so use a fixed grid instead. A second common error is a section mark that points to a detail sheet that does not exist, or a detail that has been superseded without the section mark being updated.
A drawing that is internally consistent but disagrees with the architect's grid is still wrong. Verify that every dimension ties back to the architectural set before issue. Our 2026 glazing compliance checklist covers the NCC and AS 1288 documentation side in more depth.
File Formats, Version Control and Coordination Across Vendors
File formats decide who can open your drawings. Version control decides whether they open the right ones.
Issue PDFs for review and native CAD files for coordination. Name every file with project, sheet number, and revision. Keep one register that lists the current revision of every sheet.
Coordination is where sets break down. The architect, facade consultant, and fabricator all touch the same drawing. Agree on a single source of truth early, and confirm who holds the master register. For teams working in a shared model, our guide to integrating window wall drawings into BIM covers the coordination detail.
Submitting Your Darley Shop Drawings to BluePrint Facade
Submitting is the last step, and it should be the easiest.
Send the architectural set, the Darley system selection, the hardware schedule, and your current drawings. Submitted sets can be reviewed for consistency before they move to fabrication.
BluePrint Facade produces technical documentation for Alspec, Capral, Darley, Concept, Rapid, and Criterion systems, including window wall and curved window design.
Pricing depends on project scope, sheet count, and turnaround, so get accurate facade and window shop drawings with a quote tailored to your project.
The real test of a drawing set is whether site ever has to ask a question. Most RFIs trace back to a detail that was never drawn. BluePrint Facade produces facade and glazing shop drawings, provides window wall and curved window design solutions, and documents Alspec, Capral, and Darley systems to performance standards. Get started with BluePrint Facade and issue drawings that reach the factory without a single query.
Frequently Asked Questions
What information should Darley Aluminium fabrication shop drawings include?
Each drawing set should carry the project name and number, drawing number and revision, the Darley system reference and finish, and the elevation, section and detail views for every opening. Add opening sizes and setting-out dimensions, glazing and hardware schedules, sill and head details, and any project-specific performance notes. Include the approval status block so reviewers can see what stage the drawing is at, and cross-reference the architectural drawings it was measured from so site and factory are working from the same set.
What is the difference between architectural drawings and fabrication shop drawings?
Architectural drawings set the design intent: appearance, overall dimensions, performance targets and how the facade meets the structure. Fabrication shop drawings translate that intent into what the factory actually builds. They fix the Darley system, extrusion profiles, cut lengths, reinforcement, drainage paths, hardware and tolerances for each opening. A shop drawing that only repeats the architect's elevation has not done its job. The useful test is whether a fabricator could cut and assemble from the sheet without calling the office.
Who reviews and approves aluminium fabrication shop drawings before production?
Approval usually runs through the head contractor or builder, the facade consultant or engineer, and the architect, with the fabricator confirming buildability. Each party signs off on its own scope: structural and thermal performance, design intent, and manufacturing feasibility. Keep a documented approval register with dates and revision numbers so production only starts on a stamped set. If a reviewer marks up a drawing, that markup becomes the next revision, not a verbal instruction, so the paper trail stays intact.
Which Darley system details should be checked before fabrication?
Confirm the system series and profile selection against the project's wind load and thermal requirements, then check the head, sill and jamb details for the actual substrate. Verify drainage and weephole positions, expansion allowances, and that the hardware schedule matches the Darley system's compatible fittings. Check glass thickness and edge clearance against the glazing schedule, and make sure any curved or raked sections have dedicated details rather than notes. A short internal check against the Darley technical manual before release catches most of these.
