Best Heavy Duty Power Strips for Workshops in 2026: 15A vs 20A, Metal Housings and Tool Loads

The best heavy duty power strip for a workshop is an all-metal 20-amp bench strip with a 12-gauge cord and widely spaced outlets, such as the Tripp Lite PS361220, provided your shop has a 20A circuit to feed it; on a standard 15A garage outlet, a metal 15A strip or a high-joule surge model like the Tripp Lite Isobar 8 Ultra is the safer, simpler choice. No strip can add capacity to a circuit, so the real question is how much current your tools pull at the same time and what your wall outlet can supply.

What Your Tools Actually Draw

Power strips are rated by the current they can carry continuously. Workshop tools often run close to that limit on their own, and motors pull a short startup surge several times their running current.

A saw at 15A plus a shop vac at 10A totals 25A, which exceeds both a 15A and a 20A circuit. That is why woodworkers use a vacuum auto-start switch on a separate circuit or run the dust collector from another outlet. Plan your strip around one large tool plus small loads, not two large tools at once.

15A vs 20A Strips: The Plug Tells You

• 15A strips use a standard NEMA 5-15P plug and usually a 14-gauge cord. They work in any household outlet.
• 20A strips use a NEMA 5-20P plug, with one blade turned sideways, and a 12-gauge cord. They only fit a 20A receptacle, the type with a T-shaped slot. Some ship with an adapter to a 5-15P plug, but then the whole strip is limited to 15A by the wall circuit.

Check your panel. Many garages are wired on 20A circuits with 12-gauge wire, but the receptacles are sometimes 15A types. An electrician can swap in 20A receptacles cheaply if the wiring supports it.

The Shortlist

Best Picks by Shop Setup

Workbench with mixed tools: Tripp Lite PS361220

A 36-inch metal strip with twelve outlets spread along its length fits the back edge of a workbench and leaves room for bulky chargers and power adapters. A lighted switch with a cover helps prevent accidental shutoff when you bump it, and the built-in breaker trips before the cord overheats. The 15 ft cord reaches a wall outlet from the middle of most garage benches. Mount it under the bench lip with screws through the flanges so sawdust does not settle into the outlets.

Permanent installation: Tripp Lite PS3612-20HW

For a dedicated woodshop where you want outlets along the wall at bench height, the hardwired version connects to a circuit through 3/4-inch conduit knockouts. Note that only two of its twelve outlets accept 20A plugs, and it has no breaker of its own, so the panel breaker is the only protection. Installation should be done by an electrician or to local code.

Heavy 20A loads with rear access: Tripp Lite RS-1215-20

Designed as a rack strip, the RS-1215-20 has detachable flanges for wall or under-counter mounting and twelve true 5-20R outlets, six front and six rear. It needs a 20A wall receptacle. It suits a bench where tools plug in at the front and chargers or lights stay plugged in at the back.

Electronics on the bench: Tripp Lite Isobar 8 Ultra

Workshops increasingly hold electronics: 3D printers, laser engravers, laptops running CNC software and battery charging stations. These benefit from surge suppression and filtering of noise from motors on the same circuit. The Isobar’s metal case and 3,840-joule rating make it the right home for that equipment, kept separate from saws and vacuums.

Budget 20A option: CCCEI 20A metal strip

CCCEI’s 20A strips pair a 12 AWG cord with a 5-20P plug and an all-metal body at a lower price than the Tripp Lite bench models. The 6 ft cord is short, so plan the strip near the outlet.

Why Metal Housings Matter in a Shop

• Plastic strips crack when a board or tool falls on them, exposing live contacts.
• Metal housings resist heat from a hot glue gun, soldering iron or heat gun resting nearby.
• Mounting flanges allow screw-down installation, which keeps the strip off the floor where sawdust, water and foot traffic do the most damage.

Shop Safety Rules for Power Strips

1. Never daisy-chain strips or plug a strip into an extension cord. Voltage drop and heating multiply with each connection.
2. Use GFCI protection in garages and damp areas. Most codes require it for garage outlets. If your outlet is not GFCI-protected, ask an electrician to add it rather than relying on the strip.
3. Feel the plug after a long cut session. A warm plug or cord indicates a loose receptacle or overload. Stop and fix it.
4. Keep dust out. Fine sawdust inside outlets can carbonise and track. Blow out strips with compressed air occasionally and use outlet covers on unused sockets.
5. Do not run large stationary tools from a strip. Cabinet saws, larger dust collectors and 240V compressors belong on dedicated circuits.

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