Similar projects do not need to start from scratch. Duplicating a proposal removes repetitive work when the copy is treated as a starting point, rather than a document ready to send.
What can be reused
Opening configurations, item structures, text and recurring terms are good candidates. They provide a template without removing the new order's particular requirements.
What must always be reviewed
Check customer, dimensions, color, glass, hardware, prices, deadline and margin. One accidentally inherited detail can undermine the negotiation.
Preserve history
Keep the original proposal identifiable and record the relationship between versions. The team then knows which quote was sent and can explain changes.
Reuse with review is safer than copying spreadsheets without context. See how to organize quotes.