CASE 04 · SAWTOOTH PC
800 mu of sawtooth: what 53 hectares does to a punch pattern.
800 mu is about 53 hectares. At that area the frame is a production programme, and the sawtooth's extra glazing members multiply everything.
What was supplied
Sawtooth columns, roof beams, purlins set to the PC sheet span, vertical glazing face frames and gutters. The sawtooth adds a whole extra frame per bay compared with a film roof, so the member count per hectare is much higher — which is what makes the punch pattern the critical document.
What the project taught us
At this scale, one mirrored pattern becomes thousands of wrong members. We now issue a pattern drawing with an orientation mark and a left/right note on every sawtooth job, and the first bundle is assembled in the works before the run continues.
We also learned to price the glazing-face frame as its own line. Buyers comparing per-m² sawtooth prices are often comparing a scope with the face frame and one without.
Relevance to an export buyer
If your sawtooth quotation has no glazing-face frame line, ask where it is. It is the member the glazing contractor fixes to.
Related
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Ask for the mill certificates, the packing photos or a video call on the line. We would rather answer those questions now than after the deposit.