Bill of Materials Planner
Explode a single-level product recipe into purchasing quantities, pack-rounded shortages and material cost.
- 1Set the build size
- 2Read the answer as you type
- 3Download or print it
Loading the worked example…
Assumptions
Results update as you type. Example figures are illustrative.
Your working data
Edit cells directly or import a CSV. Download “Input CSV” for the required column names. Up to 200 rows; scroll the table sideways for additional fields.
Detailed analysis
Exports include all results, regardless of the search filter. The HTML report includes assumptions and source data; use your browser’s Print command for PDF.
Chart shows the first 20 rows; negative values use a warm color. Click table headers to sort.
Compare up to four scenarios
Capture the current inputs, change assumptions and capture again. Scenarios are included in downloaded projects.
What this model includes
Single-level materials only. Allowance multiplies required quantity; available stock is reserved entirely for this build. Labor and nested assemblies are excluded.
Import and save safely
CSV imports use your current assumptions. Project files restore assumptions, rows and saved scenarios. No automatic saving: download a project before closing this page. Imports are limited to 10 MiB and 200 rows. Calculations run in your browser; the site’s advertising and analytics follow its privacy policy.
Using Bill of Materials Planner
Explode a single-level product recipe into purchasing quantities, pack-rounded shortages and material cost.
- Enter how many products you will build.
- List each part with quantity per product, waste allowance, stock, pack size and cost.
- Read the shopping list beside your table, then download it.
Example
The worked example includes Panel, Screw, Handle. Change the first products to build setting and compare the result with a saved baseline.
Questions & answers
What does Bill of Materials Planner calculate?
Explode a single-level product recipe into purchasing quantities, pack-rounded shortages and material cost.
What are the important limitations?
Single-level materials only. Allowance multiplies required quantity; available stock is reserved entirely for this build. Labor and nested assemblies are excluded.
Can I continue my work later?
Yes. Save a project JSON file and reopen it with Import CSV / project. It contains the working data, assumptions and up to four scenarios. Nothing is saved automatically.
What CSV columns do I need?
part, each, waste, stock, pack, cost. Download Input CSV for a compatible example. CSV imports keep your current assumptions.
Are these example figures current industry benchmarks?
No. They are illustrative values to demonstrate the model. Replace them with figures appropriate to your situation.
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