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Related Reading

Pro Form LitePF Class 3 film-faced between Form Extra and Pro Form when the Canadian pour needs outdoor glue class.
HDO PremiumNA HDO rung rated up to 20 reuses under proper handling.
Formwork plywood Middle EastSame mill-vetting logic with a film-faced Gulf default instead of HDO.
Film-faced suppliers CanadaMill-sourcing sibling for film-faced into Canada; keep this page on the CSA split.

Quick Answers

Does formwork plywood in Canada need a CSA stamp?

CSA O121 (Douglas-fir) and CSA O151 (Canadian softwood / SPF) are stay-in-place structural standards. Temporary formwork does not need that stamp. Spec overlay, glue class, and reuse as "up to N" instead.

How many reuses do HDO and film-faced panels get?

HDO Basic up to 10. HDO Premium up to 20. Film-faced: Form Basic up to 10, Form Extra up to 15, Pro Form Lite up to 15, Pro Form up to 20. Maxima under proper handling. Do not add a plus after the number.

Is Form Extra phenolic Class 3?

No. Form Extra is Superior Glue MUF on EN 636-2. Same phenolic face as Form Basic. Phenolic Class 3 is Pro Form, Pro Form Lite, and HDO.

Is Vietnamese formwork plywood duty-free into Canada?

Often, with a valid origin certificate, because Canada and Vietnam are CPTPP parties. Confirm HS and origin with your customs broker. No rate belongs in a blog post.

Is WBP plywood waterproof?

WBP is a water-resistant glue line, not a waterproof panel. Historical Weather and Boil Proof is a boil test on the bond. Write PF versus core MUF and the class number on the RFQ.