Envelope Retail SKU Codes

The customer-facing SKU is {SIZE}{ORIENT}-FLAP-GSM+STOCK-CLOSURE (e.g. C6WL-SF-135PW-PS). Orientation and flap both come from the die's style string — orientation glues onto the size, flap is its own segment. Each value below gets a short mnemonic (2–3 chars), unique within its group and not an easy look-alike. Sizes matching a standard show their ISO name automatically; anything else falls back to WxH (square → one dimension), so no size code is needed.

Orientation — from die style (glues onto size)

Flap — from die style

Closure

Size (standard dims → ISO name)

Stock (paper name, gsm removed)