— Migration guide
Migrating from ROMAC to Indolent Forge Nesting
An honest cost-of-ownership comparison for steel shops running ROMAC’s Length and Plate Nesting today.
— TL;DR
- ROMAC Length + Plate Nesting cost $200 one-time combined. Genuinely cheap. They do the cutting math reliably.
- KISS file import is not in either nester — it ships in Production Control 8 (PC8), a separate $750/year subscription.
- Indolent Forge Nesting is $499 one-time and bundles all three jobs (length, plate, KISS) plus polygon/DXF nesting and an AI assistant — no recurring fees, ever.
- For shops that need KISS: Indolent breaks even against ROMAC + PC8 in roughly six months and saves $1,951 over three years.
- For shops that don’t need KISS and key takeoffs in by hand: ROMAC at $200 is objectively cheaper and we’ll say so.
The ROMAC stack today
ROMAC Systems has been selling nesting and production software to steel fabricators for decades. The lineup as of 2026 has converged on a clean per-product model on their site. The pieces a typical estimator-and-nester actually touches:
- Length Nesting v2.5 — $100 one-time. Beams, angle, channel, tube, flat bar. The linear cutting math.
- Plate Nesting v2.5 — $100 one-time. 2D rectangular plate layout for shear or burning.
- Production Control 8 (PC8) — $75/month or $750/year. The job and KISS-import side. If your detailing software (Tekla, SDS/2, Advance Steel) outputs a KISS file and you do not want to key the takeoff in by hand, this is the bridge.
A shop that does both length and plate nesting and reads KISS from detailing is running three separate ROMAC apps. That is not a criticism — it is just the architecture. Each app is good at its narrow job. The trade is that you are window-switching, double-entry where the apps don’t share data cleanly, and paying the PC8 subscription forever as long as you need KISS.
What ROMAC does well
Credit where it is due:
- It is cheap up front. $100 each for the two nesters is the lowest barrier to entry in the industry, full stop.
- It does the math. The linear-nesting and plate-nesting algorithms have been refined for decades. The cut plans they produce are not exotic, but they are correct.
- It is Windows-native. v2.5 runs on Windows 10 and 11. No emulator. No DOSBox. No tribal knowledge to keep it running on new hardware.
- The buy decision is low-risk. At $100 you can experiment without a procurement meeting.
Where ROMAC starts to hurt
The friction shows up after you have used it for a quarter or two. In rough order of how much shops complain:
- KISS costs $750/year forever. PC8 is a subscription, not a one-time license. The bill keeps arriving as long as you want detailing-software imports.
- Three apps, three windows. The nesters and PC8 do not share a project model. Information gets re-keyed at the boundaries. Mistakes happen at the boundaries.
- No polygon or DXF nesting. If anything irregular crosses your desk — gussets with weird shapes, brackets from a DXF, anything that is not a clean rectangle — you are estimating it by hand or kicking it out to plasma manually.
- PDF / Excel output is dated. The cut sheets look like cut sheets from ten years ago. They print, they are usable, but they are not quotable. The shop-floor pages do not include things like shear sequence tables.
- No multi-machine routing. If you have a Beamline and a Dragon (or any two machines with different stock or capacity), the nester does not split parts between them. You do that yourself.
The actual cost comparison
The widget below runs the math on your specifics. The defaults match a typical KISS-using shop running a 3-year horizon — toggle the assumptions and the numbers update in real time.
— Try it for your shop
What does each stack cost you?
Do you need KISS file import?
ROMAC needs PC8 ($750/yr) for KISS. Indolent bundles it.
Project over how many years?
Indolent saves you $1,951 over 3 years.
The headline number is the recurring PC8 subscription. If your shop reads KISS files (most shops with a detailer do), that $750/year compounds quickly. Three years of PC8 is more than four Indolent licenses. Five years is almost eight.
What Indolent Forge does differently
- One app, one license, $499 once. Length nesting, plate nesting, polygon/DXF nesting, KISS import, Excel BOM, PDF cut sheets, AI chat, multi-machine routing — all in the one window.
- No PC8 add-on for KISS. KISS files from Tekla, SDS/2, and Advance Steel are first-class input. Drag, drop, parts grouped, ready to nest.
- ROMAC-style cut sheets, upgraded. The plate output deliberately mirrors the PN2 layout your shop already trusts (REF numbers per part mark, X-marked drops, USAGE SUMMARY) plus a shear-sequence table printed on every plate page.
- Auto-updates for life. No version stagnation. New algorithms, new file format support, new shape-database entries — all shipped to your existing license at no additional cost.
- An AI assistant that knows steel. Claude-powered chat sees your current parts, stock, and results. Auto-detects W14X22, HSS6X6X1/4, and other AISC references in your takeoff.
When ROMAC is still the right answer
We are not trying to convince anyone to spend $299 more than they need to. Cases where we’d tell you to stay with ROMAC:
- You do not need KISS — you key takeoffs in by hand from a printed estimate sheet, and that workflow is fine for the volume you do. ROMAC’s $200 nesting tools are objectively cheaper.
- You only nest two or three small jobs a year. The TCO math does not turn over enough cycles for the savings to matter — buy whatever has the lowest sticker.
- You have a deep institutional muscle memory of ROMAC and switching tools next week would slow down a known-good production rhythm. Stability has value.
How to actually compare them on a real job
The trial is the answer. Indolent Forge runs a 14-day free trial, full functionality, no credit card. Pick a job you have already estimated in ROMAC — preferably one with a KISS file and a mix of length and plate. Then:
- Import the same KISS file into Indolent that you typed in by hand for ROMAC.
- Run both nests. Compare the cut plans, the yield, and the time it took you.
- Print both sets of cut sheets and walk them to the shear operator. Watch which one generates more questions.
- Open both Excel BOMs in your estimating workbook. Note which one needs less massaging.
If ROMAC’s output wins on the criteria that actually matter to your shop, keep ROMAC and uninstall Indolent at day 14. No charge, no follow-up email pressure.
Bottom line
ROMAC Length and Plate Nesting are solid, narrowly-focused tools at a genuinely low entry price. If KISS import or one-app simplicity matter to your shop — and the math above says they probably do — Indolent Forge Nesting is the unified replacement at a one-time price that pays back fast against PC8’s recurring bill.
Try it on a real job for two weeks and decide for yourself.
Start the 14-day side-by-side.
Full functionality. No credit card. Keep the proposals it generates either way.