Robern Medicine Cabinets: Series, Sizes and Features

The most expensive mistake with a premium medicine cabinet is ordering by nominal size and discovering the wall opening is wrong. Robern medicine cabinets are mirrored aluminum cabinets sold in several collections, with the M Series as the core line. M Series cabinets come in widths from about 12 to 30 inches, heights such as 30, 40 and 70 inches, and depths of 4, 6 and 8 inches, with options for interior lighting, outlets, defoggers and night lights. Each model lists a rough opening that differs from its nominal size, and that rough opening is the number to build around.

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These cabinets can be recessed into the wall, semi-recessed or surface mounted, and the deeper models are designed for partial recessing. Electrified versions need a power feed planned before the drywall goes up. Specifications vary by model, so confirm every dimension against the current spec sheet for the exact model number.

Robern Medicine Cabinets: Sizes and Features

The M Series and Its Variations

The M Series is the workhorse collection. Cabinets are built from anodized aluminum with mirrored doors, and the line uses a patented gasket that the brand calls Safeseal to keep the interior quiet and resistant to moisture and dust. Standard models often include three glass shelves that adjust in 2-inch increments, plus magnetic organizers on the shelf rail for small items.

Door styles include flat-top cabinets with a plain or beveled mirror edge, with hinges on the left or right. Product names encode the size in a simple way: a model listed as 20 x 40 x 6 is 20 inches wide, 40 inches tall and 6 inches deep. Many configurations are made to order, so lead times can stretch to several weeks.

Electrical packages vary by model. Retail listings for the M Series show non-electric versions, versions with electric outlets and an interior light, and versions that add a mirror defogger and a night light. Some listings also describe integrated outlets and USB ports for charging toothbrushes and razors inside the cabinet. A TV-equipped variant appears in some product codes as well.

M Series Reserve

Reserve is a related collection with a more furniture-like interior. Listings describe cantilever shelves that hide the adjustment holes for a custom-built look and slow-close hinges that prevent the door from slamming. A 15-1/4 inch wide Reserve model is listed at 4 inches deep, so it can recess fully into a standard 2×4 wall.

Other collections

The brand also sells collections beyond the M Series, including Uplift and others aimed at specific styles and budgets. Check the current collection page and spec sheet before comparing them on features.

Recessed vs Surface Mounting

Fully recessed cabinets sit flush or nearly flush with the wall and look the most built-in. A 4-inch deep cabinet fits inside a standard 2×4 wall cavity (about 3-1/2 inches of stud depth plus drywall). Wider cabinets need a header and new framing because they span one or more studs.

Semi-recessed installs suit the 6 and 8 inch models, which can be recessed by 4 inches with the rest projecting from the wall. This gets you extra depth without opening an exterior wall or moving plumbing.

Surface mounted cabinets hang on the wall face. They are the only option on walls with plumbing, ductwork or wiring in the cavity, and on exterior walls where insulation and vapor barriers make recessing a poor idea. Side kits give the exposed edges a finished look.

Tools and Materials

• Stud finder (to locate studs, and on some models, live wiring behind the wall)
• Level, tape measure and pencil
• Drywall saw or oscillating tool
• 2×4 lumber for header and blocking on wider openings
• Drill and the fasteners specified in the installation guide
• Non-contact voltage tester (for electrified models)
• Cut-resistant gloves and safety glasses
• A helper for lifting

A good stud finder saves a lot of guesswork. Use it to map studs, then check the cavity with a small inspection hole before cutting the full opening; pipes and vent ducts often run exactly where you hoped to recess the cabinet.

Installation Steps for a Recessed Cabinet

1. Confirm the rough opening. Read the spec sheet for your exact model and write down the width, height and depth of the rough opening.
2. Turn off power. If any wiring is near the work area, turn off the breaker and confirm power is off with a non-contact voltage tester before cutting.
3. Locate studs and obstructions. Use the stud finder, then cut a small inspection hole to check for pipes, ducts and wires.
4. Cut the opening. Mark the rough opening level and plumb, then cut the drywall.
5. Frame it. For openings wider than one stud bay, cut the stud, add a header and sill, and fasten blocking per the installation guide.
6. Bring in power (electric models). The power feed should be in place before the cabinet goes in. Have a licensed electrician run it.
7. Set the cabinet. With a helper, lift the cabinet into the opening, level it and fasten through the sides into framing.
8. Install doors and shelves. Hang the doors, adjust hinges for even gaps and set the shelves.

Electrical and Glass Safety

Electrified cabinets connect to line voltage (standard household current), not low voltage, so treat them like any other hardwired fixture. Always turn off the breaker and confirm power is off with a non-contact voltage tester before touching wires, and never test or work on a powered circuit. Adding a new circuit or a new outlet location is work for a licensed electrician, and bathroom circuits require GFCI protection. Follow the wiring diagram in the installation guide exactly.

Mirrored doors and glass shelves are heavy and can break if flexed or knocked on an edge. Wear cut-resistant gloves and eye protection, carry doors and large cabinets with two people, keep glass upright rather than flat, and never strike or pry against a mirror edge. Store removed doors and shelves leaning on padding away from the work area.

Troubleshooting

The cabinet will not fit the opening. The opening was cut to nominal size. Enlarge it to the rough opening on the spec sheet.

Doors sit unevenly. Adjust the hinges per the guide, then check that the cabinet body is level and not racked by a tight opening.

The defogger or light does not work. Check the breaker and GFCI first. If power is present at the panel but the cabinet stays dark, call the electrician who installed the feed.

The cabinet sticks out too far. A 6 or 8 inch model was surface mounted. Semi-recess it by 4 inches if the wall cavity is clear.

General Cost Ranges

These are premium cabinets. Published listings show prices from roughly $1,000 for smaller non-electric models to around $4,000 for large or full-length electrified versions, with made-to-order options raising the price further. Side kits and accessories are extra. Professional installation commonly runs $200 to $700 for a recessed swap, and adding a new electrical feed adds electrician labor on top.

When to Call a Licensed Professional

Hire a licensed electrician for any electrified cabinet that needs a new feed, a new outlet location or a circuit change, and for any bathroom circuit without GFCI protection. Call a carpenter or contractor if the opening crosses a load-bearing wall, if plumbing or ducts need moving, or if the wall is an exterior wall with insulation. Ask your local building department if a permit is required for new electrical work.