How is Engineer-to-Order different from Make-to-Order or Make-to-Stock?

Make-to-Stock manufactures finished goods to forecast and sells from inventory. Make-to-Order assembles or finishes products from existing designs after the order arrives. Engineer-to-Order designs the product itself after the order, meaning the BOM, routings, and welding procedures are created per job. ETO carries the longest lead time, the highest engineering load, and the most volatile cost profile of the three, which is why it needs project-based software rather than repeat-batch ERP.

What is the best ERP or production planning software for custom steel fabricators?

The right system for an ETO steel shop is one built around projects rather than repeat-batch manufacturing. EZIIL was created by founders who ran a custom fab shop and could not find software that fit. Each job is its own project with its own BOM, schedule, documents, and cost actuals. Capacity planning starts in rough weekly buckets and drills down to operations once detail drawings are signed off, which matches the way ETO shops actually run. EN 1090 traceability, drawing version control, and a mobile shop floor app are built in.

How do you schedule an Engineer-to-Order steel fabrication job?

Schedule in rough capacity buckets first, reserving cutting, welding, paint, and assembly hours by week before any detailed routing exists. Once detail drawings are released, slot specific operations into the buckets. Release work in waves (structural frame first, then secondary steel, then handrails and finishes) and track each release as its own mini-project. EZIIL supports drag-and-drop bucket planning that converts into operation-level scheduling as detail lands, so capacity is protected before sequence is committed.

What is a release package in ETO steel fabrication?

A release package is a defined slice of an ETO project that engineering hands off to production as a unit. Most custom steel shops release the structural frame first, then secondary steel, then handrails, finishes, and balustrades. Each release has its own drawings, BOM, kit, and cost tracking. Named releases like 'Project Stevenson, Frame Release 2' are more useful on the shop floor than abstract job numbers because operators care about what is shipping when. EZIIL is structured around releases by default.

How long does an ETO steel fabrication project usually take?

Most ETO steel projects run 8 to 20 weeks from contract to delivery. Larger structural or industrial jobs can run 6 to 12 months. The length is driven by engineering iterations, material lead times (especially long sections, plate, and specialty steels), and the number of releases the project is broken into. Tracking plan versus actual hours weekly at the release level catches drift before it becomes a margin problem at handover, which is the level EZIIL surfaces by default.

How should ETO steel shops handle engineering change orders (ECOs)?

Treat ECOs as a normal part of the workflow, not an exception. ETO jobs always change after kickoff with site dimension updates, weld map revisions, and detail tweaks. Capture every change against the work order it affects, with the drawing revision linked so the shop floor always builds from the current print. EZIIL versions drawings against work orders and surfaces the latest revision in the mobile shop floor app, eliminating the 'we built it to the old print' problem that costs custom shops thousands per job.

What is EN 1090 traceability and why does it matter for ETO steel fabricators?

EN 1090 is the European standard for the execution of steel and aluminium structures, and it requires a full audit trail covering material certificates, welder qualifications, welding procedure specifications (WPS), and NDT results. For ETO shops, this trail has to be built per job because every project has its own welding map. EZIIL captures EN 1090 traceability directly against the project rather than in a separate folder system, so audits do not turn into a frantic document hunt.

How do you track plan versus actual hours in an ETO project?

Track at the release level, not just the job level. A single ETO job can run 8 to 20 weeks, so by the time the post-mortem happens the team has already forgotten what slipped in week 3. Weekly plan versus actual on each release catches drift early enough to act. EZIIL shows plan versus actual at four levels (project, release, work order, and operation), so a job burning hot in week 2 is visible the same week, not at the post-mortem.

Can EZIIL replace Excel and paper job sheets for a custom steel fabricator?

Yes. EZIIL covers the workflows that usually live in spreadsheets and binders in a custom shop, including quoting, project planning, BOM, procurement, work orders, shop floor reporting, plan versus actual tracking, and EN 1090 traceability. The mobile shop floor app means operators report hours and progress in real time instead of handing in paper job cards. Shops typically retire several core spreadsheets in the first weeks of use because everyone is finally working off the same data.

How much does EZIIL cost for a small or mid-size custom steel fabrication shop?

EZIIL uses modular pricing built around team size. The Starter base product is €120 per month for 1 to 15 users, €180 per month for 16 to 30 users, and €290 per month for 31 to 50 users. A one-time €300 onboarding fee covers setup and configuration. BOM, procurement, EN 1090, and subcontractor modules can be added only when the shop is ready for them, so there is no big-bang implementation and no per-user surprise on the invoice. ETO shops cannot afford a 6 month rollout, and EZIIL is designed so they do not have to.

What are the most common ETO planning mistakes custom steel fabricators make?

The most common ETO planning mistakes are quoting without an engineering contingency line, scheduling at operation level before detail drawings exist, releasing jobs to production without pre-kitting materials, and tracking plan versus actual only at the full job level. Adding a 5 to 15% engineering contingency to every quote, planning in rough capacity buckets first, pre-kitting before each release, and tracking weekly per release removes most margin leaks. EZIIL is structured to enforce this rhythm by default.

How do you quote an ETO steel fabrication job accurately?

Build a rough BOM and labor estimate from the quote drawings or 3D model (Tekla, SolidWorks, Advance Steel) before pricing. Lock that estimate as the planning baseline. Add a 5 to 15% engineering contingency line and burn it down visibly as the job progresses. If you are at 90% of contingency by week 2, you have a margin problem now, not at delivery. EZIIL ties the quote, the plan, and the actuals to the same project record, so the contingency burn is visible in real time instead of surfacing in the post-mortem.

Engineer-to-Order (ETO)

Q: What is Engineer-to-Order (ETO) in steel fabrication?

Engineer-to-Order (ETO) is a manufacturing strategy where the product is designed from scratch after the contract is signed. Each job has its own drawings, its own bill of materials, its own routing, and often its own welding procedures. For custom steel fabricators building bespoke staircases, structural frames, architectural metalwork, mezzanines, conveyors, or one-off industrial equipment, ETO is the default operating mode, not a category to opt into. The terminology comes from APICS and ISA-95 manufacturing strategy frameworks.

Q: Why do standard ERP and MRP systems fail in ETO steel shops?

Standard ERP assumes the BOM exists before the job starts, routings are reusable across jobs, capacity can be forecast from historical demand, and inventory can be planned from the production schedule. In a real ETO steel shop, the BOM is being detailed while the first cutting list goes to the shop floor, the routing depends on which welder is on shift, and material is kitted off the rack mid-build. That is why so many fabricators try Genius ERP, JobBOSS, or generic MRPeasy implementations and end up back on Excel. EZIIL was built specifically to solve this gap.

What is Engineer-to-Order (ETO) in steel fabrication?

Engineer-to-order (ETO) is a manufacturing strategy where the product is designed from scratch for each customer order. The design starts after the contract is signed, not before. Every job has its own drawings, its own bill of materials, its own routing, and often its own welding procedures.

For custom steel fabricators, ETO is the default.

If you build bespoke staircases, structural frames, architectural metalwork, mezzanines, conveyors, or one-off industrial equipment, you are running an ETO shop. The terminology comes from manufacturing strategy textbooks (APICS, ISA-95) and shows up on every ERP vendor’s qualifying questionnaire.

Why Engineer-to-Order matters for custom steel fabricators

The reason ETO matters is that it breaks every assumption built into off-the-shelf ERP and MRP software.

Standard ERP assumes:

The BOM exists before the job starts
Routings are reusable across jobs
Capacity can be forecast from historical demand
Inventory can be planned from the production schedule

In a real ETO steel shop, none of these are true on day one. The BOM is being detailed while the first cutting list goes to the shop floor. The routing depends on which welder is on shift. Capacity forecasting fights with the four projects already running late. Material is being kitted off the rack mid-build.

This is exactly why so many fabricators try Genius ERP, JobBOSS², or generic MRPeasy implementations and end up back on Excel. The software was built for repeat-batch discrete manufacturing, not for ETO. If you have ever sat in a demo where the vendor said “you just enter the BOM at the start” and you wanted to laugh, you are an ETO shop.

The other reason it matters: ETO is what makes job shop scheduling hard. You cannot run finite capacity scheduling against a job that does not have a finalized routing yet. You have to plan with rough buckets, then refine. That is a workflow most ERPs do not support.

How to run an ETO workflow in a steel shop

Practical, shop-floor approach:

Estimate before you design. Build a rough BOM and labor estimate from the quote drawings or 3D model (Tekla, SolidWorks, Advance Steel). This is your planning baseline. Lock pricing against this.
Block out capacity in rough buckets first. Reserve cutting/CNC, welding, paint, and assembly hours by week. Do not try to schedule by individual operation until the detail drawings are signed off. You are protecting capacity, not committing to a sequence.
Detail incrementally and release in waves. Most ETO shops release the structural frame first, then secondary steel, then handrails and finishes. Treat each release as its own mini-project so you can track progress and cost separately.
Track plan versus actual hours per release, not per job. A single ETO job can run 8 to 20 weeks. By the time it ends, the team has forgotten what went wrong in week 3. Weekly plan-versus-actual at the release level catches drift early.

5. Capture the as-built changes. ETO jobs always change after kickoff. Engineering Change Orders (ECOs), site dimension changes, welding map revisions. If your system does not version the documents, your shop floor is building from the wrong drawing.

Best practices for ETO steel fabrication

Standardize what you can. Even pure ETO shops have repeat patterns. Welded stair stringers, beam-to-column connections, baseplate details. Saving these as reusable templates cuts detailing time by 30 to 50% on the next similar job.
Use named release packages, not job numbers. “Project Stevenson > Frame Release 2” is more useful on the shop floor than “Job 24-0917 Phase B.” Operators care about what is shipping when.
Quote with contingency, then track it. Build a 5 to 15% engineering contingency into every ETO quote and burn it down visibly. If you are at 90% of contingency in week 2, you have a margin problem now, not at delivery.
Pre-kit materials before release to production. Half-started ETO jobs aging on the floor are the single largest source of inventory dollar-days (IDD) in custom shops.

Hold a 15 minute pre-release meeting. Engineering, planning, purchasing, and the shop foreman in one room before each release goes live. This catches 80% of the “we don’t have the material” and “that weld procedure isn’t qualified” surprises.

How EZIIL helps custom ETO steel fabricators

EZIIL was built specifically for ETO project-based steel shops. The reason is that the founders ran a custom fab shop and could not find software that fit. The product is shaped around the ETO realities most ERPs ignore:

Project-based structure from day one. Each job is its own project with its own BOM, schedule, documents, and cost actuals. You are not bolting “projects” onto a manufacturing module.
Plan in rough buckets first, then drill down. Drag-and-drop capacity planning lets you reserve welding and assembly hours by week before the detail drawings exist. When detail lands, you slot the operations into the bucket.
Plan versus actual at every level. Project, release, work order, operation. If a job starts burning hours faster than planned in week 2, the dashboard shows it. You do not find out at the post-mortem.
Document versioning that actually works on the shop floor. Drawing revisions are linked to the work order. The mobile shop floor app shows the latest rev. No more “we built it to the old print” arguments.
EN 1090 traceability built in. For European ETO shops, the audit trail (material certs, welder qualifications, NDT results) is captured against the job, not in a separate folder system.
Modular pricing fits ETO economics. Start at €120/$140 per month (1 to 15 users), add BOM, procurement, EN 1090, and subcontractor modules only when you are ready. No big-bang implementation, no per-user surprises. ETO shops often cannot afford a 6 month rollout, and they should not have to.