Pick a product, set the size and options, and turn it in 3D. The limits from your catalog are checked while you work, and the price updates with every change.
The offer sheet is generated from the configuration, with every position, drawing and total. Send it as a PDF or as a link, without retyping anything.
Your customer opens a signed link and accepts the offer. You see the answer at once, and the accepted configuration is frozen.
Acceptance becomes a production order with a status you can follow. The cutting list comes from the same parts, so lengths and angles match the offer.