From Order to Erection: The PEMB Process
Welcome
Hello, and welcome. This is Super Structures General Contractors — a national general contractor headquartered in Powhatan, Virginia — here to help you and your clients build something that lasts. We're glad you're with us, and we look forward to connecting with you.
Let me tell you why From Order to Erection: The PEMB Process pays off down the road. Here's the heart of it: A PEMB runs on parallel paths — fabricate the long-lead steel while pouring the foundation to the manufacturer's anchor-bolt plan — and the make-or-break coordination is setting (and surveying) the anchor bolts accurately before the steel ships. Get comfortable here and the rest of this trade gets a whole lot less intimidating.
A metal building project flows differently from stick-built construction — and one handoff dominates the schedule.
The sequence
- Design & quote — the builder/dealer gives the manufacturer the size, loads, code, and accessories; the manufacturer engineers and quotes the system.
- Approval drawings — the manufacturer issues stamped anchor-bolt plans (needed early!) and erection drawings; you review and approve.
- Foundation — in parallel, a local engineer designs and a contractor pours the foundation with the anchor bolts set precisely.
- Fabrication & delivery — the manufacturer fabricates and ships the building (often several truckloads), bundled for erection.
- Erection — the crew assembles primary frames, secondary framing, and bracing, then the panels and trim.
- Closeout — doors, insulation, accessories, weathertightness, inspections, and the CO.
The critical handoff: anchor bolts
The anchor-bolt setting plan must be correct and the bolts set accurately before the steel arrives. A misplaced anchor bolt is a costly field fix that stalls erection.
Going Deeper (Intermediate)
Fabrication is a long-lead item — often weeks to months — so the building drives the schedule, and you run parallel paths: pour the foundation to the manufacturer's anchor-bolt plan while the steel is being fabricated. Coordinate the delivery sequence to erection (you want frame steel first), inspect the shipment against the packing list, and protect the panels in storage. Many GCs operate as an authorized builder/dealer for a manufacturer and either self-erect or sub the erection.
Advanced / Pro-Level
Changes after fabrication are expensive, so lock the design early. Template and survey the anchor bolts to verify placement before steel arrives — this is the highest-leverage QA step on the whole job. Manage delivery logistics (crane access, laydown area), the schedule risk of fabrication lead time against permits and foundation cure, and the back-charge exposure if anchor bolts are wrong. The builder who coordinates the manufacturer, the foundation contractor, and the erector tightly is the one who hits the date.
Practice Challenge
Why must the anchor-bolt plan be finalized and the bolts set accurately before the steel ships, and what happens if a bolt is misplaced? (Answer: the rigid-frame columns bolt directly to those anchor bolts, so the bolt pattern must match the steel exactly. A misplaced bolt means the column won't seat — forcing field fixes (re-drilling, epoxy anchors, or a re-pour) that delay erection and add cost. The anchor-bolt handoff is the project's highest-risk coordination point — survey it before steel arrives.)
Takeaway: A PEMB runs on parallel paths — fabricate the long-lead steel while pouring the foundation to the manufacturer's anchor-bolt plan — and the make-or-break coordination is setting (and surveying) the anchor bolts accurately before the steel ships.
Educational overview — metal building design must be performed by qualified engineers to the adopted codes and the manufacturer's specifications; verify requirements for your specific project.
