MRI Magnetic Shielding Design
Magnetic shielding design that’s precise, compliant, and built to pass review the first time. We deliver the full package—field modeling, calculations, drawings, and coordination—so your MRI suite stays on schedule, on budget, and the fringe field stays exactly where it’s supposed to.
Before/After
Designed for compliance. Built for performance.
We deliver complete magnetic shielding design packages—calculations, details, and coordination—to support installation, testing, and final acceptance.
By the numbers
Experts in Magnetic Shielding
Proven MRI magnetic shielding design—from first calculation to final closeout. Fast turnarounds, clean coordination, predictable outcomes.
One team, from concept to closeout
Don’t gamble with safety clearances, magnet siting, or your budget by settling for inadequate magnetic shielding.
Fewer Change Orders, Smoother Construction
Our magnetic shielding designs are built for constructability — clear layouts, coordinated steel placement, and practical installation details. That means fewer surprises in the field, less rework, and better control over structural and construction impacts.
Code-Ready, OEM-Ready Deliverables
We produce fringe field modeling, calculations, and drawings aligned with MRI manufacturer requirements, safety standards, and local codes — creating a clear path to OEM review, AHJ approval, and final signoff.
Faster Turnarounds for New Builds and Retrofits
Whether you’re planning a new MRI suite or adapting an existing space, we move quickly from site constraints to a buildable shielding solution. Ideal for tight footprints, adjacent occupancies, and aggressive project timelines.
Coordination for Structure, Adjacencies, and Safety Zones
Magnetic shielding succeeds or fails at the interfaces — structure, floors, walls, adjacent rooms, public spaces, and equipment areas. We coordinate these early so your fringe field stays contained, your safety zones are protected, and your design stays compliant.
Magnetic Shielding for MRI Rooms FAQ
A complete MRI magnetic shielding design package defines the shielding required to control the MRI fringe field and meet site safety and clearance requirements. It typically includes a site-specific design using steel (or other ferromagnetic) shielding, calculations and modeling to predict fringe field performance (often to achieve the required 5-gauss line or other project-defined limits), layout drawings and details, shielding thicknesses and material specs, and coordination notes for structural support and constructability. A full package also accounts for nearby sensitive areas (public corridors, elevators, adjacent imaging rooms), equipment rooms, and any constraints that could affect the final MRI magnet placement and field containment strategy.
Magnetic shielding is determined by evaluating the MRI magnet type and field strength (e.g., 1.5T or 3T), the proposed room location, and what’s around it—above, below, and on all sides. Designers review architectural and structural conditions, adjacent occupancies, and safety requirements, then model the expected fringe field to see where the field levels fall relative to required limits (commonly the 5-gauss boundary, but the project or OEM may specify additional criteria). The amount of shielding needed depends on site constraints: tight footprints, nearby public areas, and sensitive equipment typically require more shielding; open buffer zones usually require less.
The fringe field is the magnetic field that extends beyond the MRI scanner and into the surrounding space. It’s present even when the MRI is not scanning, because the magnet is continuously energized (for most MRI systems).
The 5 gauss line is a commonly referenced boundary used in MRI planning. It indicates where the magnetic field strength drops to 5 gauss (0.5 mT). Many facilities plan layouts to keep the general public outside this line, based on safety guidance and site policies.
No. Some sites naturally contain the fringe field due to distance, layout, structural steel, or location. Shielding is typically needed when the 5 gauss line would extend into:
- Public corridors or waiting rooms
- Neighboring suites (clinics, offices)
- Elevators, stairs, or building entrances
- Areas with sensitive equipment or critical infrastructure
Common approaches include:
- Passive shielding: steel plates/panels added to walls, floor, and/or ceiling
- Active shielding: magnet design features (built into many modern MRI systems) that reduce fringe field
Most projects use active shielding from the scanner plus passive shielding as needed for the building.
Passive shielding commonly uses ferromagnetic steel (often low-carbon steel) in engineered thicknesses and layouts. The exact material, thickness, and placement depend on the MRI model, field strength, and building constraints.
Sometimes, yes—but it’s usually harder and more expensive. Best practice is to model the fringe field during design and build shielding into the room construction plan before installation.
The biggest drivers are:
- MRI field strength (e.g., 1.5T vs 3T)
- Magnet type and built-in (active) shielding
- Room size and proximity to other spaces
- Nearby steel (beams/columns)
- Floor-to-floor conditions and overhead constraints
- What’s above/below/next door (public vs staff-only vs equipment)
Let's Work Together
We’ll partner with you to deliver simple, effective, customizable solutions that improve the healthcare experience and maximize ROI.
