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A step-by-step standard operating procedure (SOP) to ensure safety, quality, and consistency in your fabrication workshop and on-site installations.
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Running a busy glass and aluminium workshop means balancing millimetre-accurate fabrication with high-stakes on-site installations. This Standard Operating Procedure is the practical blueprint that keeps your team safe, your quality consistent, and your business protected from costly recuts. Whether you are onboarding new apprentices, bidding for larger commercial glazing contracts, or trying to step back from daily site supervision, you need a clear, repeatable system. A great SOP doesn't sit on a shelf gathering dust; it speaks the language of the workshop floor and the active construction site. It clearly maps out every phase, from initial material inspection and precision cutting to weatherproofing and final glass handling. By defining exact tolerances, safety gear mandates, and quality check sign-offs, this document ensures that every window, storefront, or balustrade that leaves your shop meets the highest trade standards. It turns your hard-earned technical expertise into a scalable asset that keeps your crew safe and your clients satisfied.
Your SOP must reference specific national glazing standards, such as AS 1288 or ASTM standards, and include a mandatory step to verify the glass thickness against the project's engineered wind-load charts before cutting. You should also include a section requiring installers to cross-check site wind ratings with the manufacturer’s structural silicone specifications.
For standard aluminium frame fabrication, the industry-standard cutting tolerance is plus or minus 1.0 millimeter. Glass panels should be ordered or cut with a tolerance of plus or minus 2.0 millimeters to allow adequate clearance for setting blocks and structural movement.
The SOP should mandate that glass panels are always stored on rubber-lined A-frames at an angle of 3 to 5 degrees, never placed directly on concrete or metal surfaces. Installers must use rated suction cups and wear cut-resistant gloves and forearm sleeves during every lift.
You should review and update your SOP annually or immediately whenever you introduce new machinery, such as a CNC router, or switch to a new sealant system. This keeps your training materials aligned with your actual workshop capabilities and prevents outdated safety practices.
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