What it does
A woven sack's cost is decided by its fabric. The tape denier and the mesh set how much polymer is in the bag; the blend the tape is extruded from sets what that polymer costs; and almost every process after that — weaving, lamination, printing, conversion — is paid for by weight. Quote from a bag weight someone typed in and every one of those numbers is built on a guess.
The Woven Sack & FIBC Cost Calculator turns that around. You specify the fabric, and the bag's weight is calculated — so changing the mesh, the denier or the coating moves the whole cost the way it does in the plant, and the break-up underneath always adds up to the fabric you described.
How it works
- Open the module and choose New quote.
- Pick a cost model from the list available to you.
- Choose the product — a plain or laminated sack, a cement or valve bag, or an FIBC — and the form shows only the steps that product has.
- Describe the fabric: tape recipe, denier, mesh, fabric width and length, coating and any liner.
- Add the job: quantity, printing, conversion, packing and freight.
- Read the live cost break-up as you adjust it — the price updates as you type.
What a cost model holds
- Materials Polymer granules, fillers and masterbatches with their rate per kilogram — what a tape recipe is blended from.
- Tape recipes Named blends with the proportion of each material, so a recipe's blended rate reaches every quote priced from it.
- Process rates Extrusion, weaving, lamination, printing and conversion, banded by order quantity so a trial run and a container load do not price off the same row.
- Packing and freight Baling and packing rates, and freight types including a per-kg rate with a minimum charge.
Suppliers and admins author models from Manage cost models; a model is Public (usable by everyone) or Private. A Private model can still be shared with named customers by their Google sign-in email — they can price against it but never see the rate tables or edit the model. If you price against someone else's model, keep your own materials and tape recipes under Manage inputs.
Quoting on the basis your customer buys on
A sack is sold per bag by one customer, per tonne by the next. Pick the basis under Quote by — per bag, per 1,000 bags, per kilogram or per metric tonne — and the price on screen, the documents and the WhatsApp or email message all state that one basis, so nothing reaches the customer described two ways. A price table prices the same sack across a ladder of quantities at once, every row recalculated in full rather than scaled.
What the break-up shows
- Specifications The fabric specification, the calculated bag weight, and the order's total weight in kilograms and tonnes.
- Cost break-up Tape and fabric, extrusion, weaving, lamination, printing, conversion, packing and freight to a works cost, then overheads and margin to the selling price.
- Price On your chosen basis, with the order value beside it.
A sack estimate is a working estimate, not a quotation, until you send it as one. It is what the bag works out to against one cost model's rate tables on the day — confirm the final price with the manufacturer before you commit to it.
Quotes you can send
Save a quote and it appears under Saved quotes on the module home. Reopening one reprices it against the cost model's current rates and tells you if the price has moved since you saved it. When you are ready, send it: a quotation, a job cost sheet, a product specification and a proforma invoice, shared by WhatsApp or email — or share a locked copy inside GPN, which your customer opens in their own account and can compare against other suppliers' quotes side by side. Marking a quote submitted or confirmed locks it, and a locked quote keeps the price it was sent at however the underlying rates change afterwards.
Who uses it
- Woven sack manufacturers One place for every rate the plant quotes from, with the bag weight derived from the fabric rather than re-entered for each enquiry.
- Cement, fertiliser and food packers With calculator access, price a sack against a published cost model to understand what a quote is built on before negotiating.
- FIBC makers and traders The same cost break-up discipline the laminate, box, cylinder and label calculators use, on the same platform and the same login.
The use cases on the home page cover all eight roles and which modules answer each.