How to Install Surface-Mounted Electrical Conduit in a Workshop

Conduit is the backbone of a serious workshop. When you need to add outlets or lighting without the mess of fishing wires through finished walls, Electrical Metallic Tubing (EMT) is your best friend. It provides mechanical protection for your wiring, looks professional, and is easily modified when your shop layout inevitably changes. Done well, a conduit run is dead straight, securely anchored, and properly grounded. It turns a bare basement or garage wall into a functional power hub. Focus on clean bends and tight connections, as these are the hallmarks of a permanent, safe, and code-compliant electrical install that will serve you for decades.

  1. Map Your Runs First. Mark the exact location of your outlets and junction boxes on the wall using a level. Run your pencil line along the intended path to ensure you have enough clearance for the conduit straps and fittings.
  2. Get Boxes Plumb. Secure your surface-mount utility boxes directly to the wall studs using screws. Ensure each box is perfectly level, as crooked boxes make the subsequent conduit runs look messy and difficult to align.
  3. Cut and Ream Clean. Measure the distance between your boxes, accounting for the depth the conduit will sit inside the fittings. Cut the EMT conduit to length using a hacksaw or a specialized conduit cutter, then ream the inside edges to remove sharp burrs.
  4. Master the Bends. Use a hand conduit bender to create offsets or 90-degree bends where necessary. Align your bends so they perfectly enter the knockouts on your junction boxes without putting stress on the fittings.
  5. Lock Runs Solid. Attach the conduit to the boxes using set-screw connectors and tighten them firmly. Install one-hole or two-hole conduit straps every three feet and within twelve inches of every box to keep the run rigid.
  6. Thread Wires Through. Feed your THHN wire through the conduit runs, starting from the power source and moving toward the last box. Use a steel fish tape if the run is long or contains multiple bends.