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9-Circuit Subpanel for Workshop

HillsboroughCompleted March 2026Whole-Home Panel Upgrades

Detached woodworking shop in Hillsborough — 100A subpanel with nine circuits including 240V for the table saw and dust collector.

Detached workshop with subpanel installed.

Customer was running an extension cord from the house to power his table saw. He wanted to do it right.

We pulled a 100A feeder from the main panel, trenched 50 ft of buried conduit to the detached shop, installed a Square D QO subpanel with nine circuits, and dedicated 240V circuits for the table saw, dust collector, and air compressor. Two GFCI 20A receptacle circuits cover hand tools.

Specs

Feed
100A from main panel
Circuits
9 (3× 240V, 6× 120V)
Trench length
50 ft buried PVC

Before & after

Outdated electrical panel before replacement.Before
Modern 200-amp panel after installation.After
Workshop wall
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