Pretzel vs. spreadsheets for production planning
Almost every hardware team plans its first production run in a spreadsheet — and for a first run, that's the right call. But as products, purchase orders, and people multiply, the spreadsheet quietly becomes the riskiest tool in your factory. Here's an honest look at where each approach wins.
Pretzel is production planning software built for small hardware teams: it shows engineering, manufacturing, and supply chain exactly what to build and what to order, when.
Where spreadsheets break down
Spreadsheets fail at production planning for one structural reason: they're documents, not systems. A document can describe your plan; it can't keep the plan true. Inventory counts go stale the moment they're typed in. A BOM revision has to be hand-propagated to every sheet that mentions the part. And because anyone can edit anything, the plan's correctness depends on everyone's discipline, every day.
The cost shows up as stockouts discovered mid-build, rush shipping fees, and a weekly planning meeting that exists mostly to reconcile what the spreadsheet says with what's actually on the shelf.
Side-by-side comparison
| Spreadsheets | Pretzel | |
|---|---|---|
| Source of truth | Copies multiply: v2_final, the one in email, the one on someone's desktop. Nobody is sure which plan is current. | One live plan. Engineering, manufacturing, and supply chain all look at the same numbers. |
| What to build and order today | Someone cross-references inventory, open orders, lead times, and the BOM by hand — usually weekly, usually late. | Computed for you, continuously. Open Pretzel and see exactly what to build and what to order, today. |
| BOM changes | A revised part means find-and-update across every sheet that references it. Miss one and you order the wrong component. | Change the BOM once and it flows through your build and order plan automatically. |
| Team coordination | Status lives in meetings, Slack threads, and email chains around the sheet. | The plan is the status. Everyone sees what's blocked, what's ready, and what's next. |
| Errors | Broken formulas and copy-paste mistakes fail silently — you find out when parts don't arrive. | Structured data instead of freeform cells, so plans stay internally consistent. |
| Scaling | Fine at 1 product and 50 parts. At several assemblies and thousands of components, the sheet becomes a full-time job. | Unlimited products and components — hundreds of assemblies stay as manageable as one. |
| Getting started | Instant on day one — that's the honest advantage, and why everyone starts here. | A few days to import your product data and set up your team. No IT department required. |
When a spreadsheet is still the right tool
If you're one person building one simple product, a disciplined spreadsheet costs nothing and does the job — keep using it. The switch is worth it when the plan has to be shared: multiple products, changing BOMs, parts on order from several vendors, and more than one person who needs to know what to do today. That's the point where the hours spent maintaining the sheet (and the mistakes that slip through anyway) cost more than a planning tool does.
What switching looks like
Moving off spreadsheets doesn't mean an ERP project. Pretzel imports the product and component data you already have, and most teams are running in a few days — no IT support, no consultants, no months-long implementation. Your spreadsheets stay useful for analysis; the production plan itself moves somewhere it can't silently break. Have questions about your setup? Get in touch or see how it works on the Pretzel homepage.
Frequently asked questions
Can I import my existing spreadsheets into Pretzel?
Yes. Onboarding is built around importing the product and component data you already track in spreadsheets, so you keep everything you've built up — most teams are fully up and running in a few days.
When are spreadsheets good enough for production planning?
If you're building one simple product in low volume with a single person doing the planning, a well-kept spreadsheet is genuinely fine. The breaking point is usually when multiple people need the plan, when BOMs start changing between builds, or when stockouts and rush orders start costing real money.
Do we have to stop using spreadsheets entirely?
No. Many teams keep spreadsheets for ad-hoc analysis and reporting. What moves into Pretzel is the production plan itself — the single source of truth for what to build and order — so the spreadsheet errors that hurt (stale copies, silent formula mistakes) can't reach your production line.
Is Pretzel as flexible as a spreadsheet?
For production planning, yes — Pretzel adapts to a wide range of hardware products and processes, from electronics to mechanical assemblies. It's intentionally more structured than a blank sheet: that structure is what keeps the plan correct as products and teams grow.