Indoor · Glass door · 600×600
16U Server Rack Cabinet with Lock & Tempered Glass (600x600mm)
$690.00
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16U Server Rack Guide
16U Server Rack Cabinets for Indoor IT Rooms and Outdoor Network Sites
A 16U server rack gives you 28 inches of standard 19-inch rack space in a cabinet that still fits in a closet, a back office or on a concrete pad outside. It is the size we recommend most often when a wall-mount rack is too small but a full-height cabinet would mostly sit empty.
Quick answer
- Height: 16U = 16 × 1.75 in = 28 in (711 mm) of usable rack space.
- Width and depth: 19-inch EIA-310 rails in 600 or 800 mm wide cabinets, 600 to 1000 mm deep.
- Indoor: lockable glass-door 16U server rack cabinet on casters, from $690.
- Outdoor: IP66 16U network cabinets, suitable for NEMA 4 applications, from $1,699; with air conditioning from $2,100.
- Best for: small offices, branch IT closets, CCTV/NVR systems, telecom edge and industrial sites.
What Is a 16U Server Rack?
The "U" stands for rack unit, the standard height measurement for 19-inch equipment. One rack unit equals 1.75 inches (44.45 mm), so a 16U server rack has 16 of those slots stacked on its mounting rails. A typical 1U switch takes one slot, a 2U server takes two, and a small rack UPS usually takes two.
In practice, 16U is the middle ground. It holds far more than a 6U, 9U or 12U wall cabinet, but it stays around waist to chest height, so you can work on the top devices without a step stool and slide the cabinet into spaces where a 42U rack would never fit. If you want to run the numbers for your own equipment, our guide to rack unit math walks through it step by step.
You will see this size sold as a 16U rack cabinet, 16U network rack, 16U data cabinet or 16U server cabinet. The names overlap; what matters is the depth, the door and lock style, and whether the enclosure is meant for a climate-controlled room or for the outdoors.
16U Rack Dimensions: Height, Width and Depth
Every 16U cabinet shares the same 28 inches of usable rack height. What changes from model to model is the outside height, the width and, most importantly, the depth.
| Measurement | 16U value | What it means for you |
|---|---|---|
| Usable rack height | 28 in (711 mm) | 16 rack units of mounting space on the rails |
| Mounting standard | 19-inch, EIA-310 | Fits standard switches, servers, patch panels, shelves and PDUs |
| Cabinet width | 600 mm (24 in) or 800 mm (32 in) | 800 mm leaves side space for vertical cable management |
| Cabinet depth | 600, 800 or 1000 mm (24, 32 or 39 in) | Pick based on your deepest device plus rear cable room |
| Indoor 16U example | 600 W × 600 D × 890 H mm (24 × 24 × 35 in) | Glass-door cabinet on casters, for devices 300 to 500 mm deep |
| Outdoor 16U footprints | 600×600, 600×800, 600×1000, 800×800, 800×1000 mm | Galvanized or stainless steel, IP66, with or without A/C |
| Outdoor 16U body height | About 37.5 in (953 mm) | Plan extra clearance for the roof overhang, base and door swing |
Which 16U Depth Do You Need?
600 mm deep works for switches, patch panels, routers, NVRs and other short-depth gear. 800 mm is the comfortable choice for mid-depth servers and rack-mount UPS units. 1000 mm makes sense for full-depth servers, or when you want real working room behind the rails for fiber trays, PDUs and tidy cable runs. Depth is the one spec people most often get wrong, so it is worth reading why 600, 800 and 1000 mm cabinets are not interchangeable before you order.
What Fits in a 16U Server Rack?
More than most people expect. Here is a realistic small-business layout that uses 12U and still leaves 4U free:
- Top (5U): 24-port patch panel, horizontal cable manager, 48-port switch, firewall or router, and a shelf for the modem or fiber ONT.
- Middle (4U): a 2U NVR for the camera system and a 2U server or NAS.
- Spare (4U): room for a second switch, more storage or better airflow later.
- Bottom (3U): a PDU and a 2U rack UPS, kept low so the weight stays at the base.
As a rule of thumb, plan for about 20 to 25 percent free space. Networks grow, and a cabinet that is packed on day one runs hotter and is harder to service. If you are planning your power, our article on vertical vs horizontal PDUs helps you decide where the power strip should go.
Indoor vs Outdoor 16U Server Racks
The rack space is the same; the job is not. An indoor cabinet organizes and secures equipment in a room that is already dry and cool. An outdoor cabinet has to become that room.
| Feature | Indoor 16U server rack cabinet | Outdoor 16U network cabinet |
|---|---|---|
| Where it goes | Offices, IT closets, server rooms, home labs | Rooftops, poles, parking lots, utility and telecom sites |
| Protection | Lockable door, dust and tamper protection | IP66, suitable for NEMA 4 applications, gasketed lockable doors |
| Door | 4 mm tempered glass front door | Solid steel front and rear doors with door switch |
| Cooling | Optional 2 or 4 roof fans | Fan-ready (Essential Series) or built-in air conditioner (Climate Series) |
| Cable entry | Top and bottom cable entries | Bottom knockouts with IP68 cable glands |
| Material | 1.5 mm galvanized steel, black or grey | Galvanized steel or stainless steel |
| Starting price | $690 | $1,699 (A/C models from $2,100) |
Indoor 16U Server Rack Cabinet with Glass Door
Our 16U server rack cabinet with lock and tempered glass is a 600 × 600 mm floor-standing enclosure on casters. You can see status lights without opening the door, roll it out for rear access, and lock it when the office is shared. It is a popular pick for small offices and home lab server racks. If floor space is tight and your gear is light, compare it with our wall-mount server rack cabinets.
Outdoor 16U IP66 Cabinets: Essential vs Climate Series
The Essential Series is a sealed IP66 16U enclosure with four adjustable 19-inch rails, a DIN rail, door switch, grounding, IP68 cable glands and a floor mounting base. It is fan-ready, which suits low heat loads and mild climates. The Climate Series adds a cabinet air conditioner for sites with real heat, sun exposure or temperature-sensitive gear. Not sure which one you need? Start with an enclosure heat load calculation, then browse outdoor cabinets with A/C.
Galvanized or Stainless Steel?
Galvanized steel with an outdoor powder coat is the value choice for most inland sites. Stainless steel costs more, starting at $3,850 for 16U, but it holds up better near the coast, around chemicals and in wash-down areas. Our stainless steel server racks page and the guide to NEMA 3R vs NEMA 4X explain when the upgrade pays off.
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Popular 16U Server Rack Cabinets
How to Choose the Right 16U Rack Cabinet
Five questions settle almost every 16U decision. Answer them in order and the right model usually picks itself.
- How many rack units do you need today? List every device and its U height, then add 20 to 25 percent. If the total lands between 10U and 13U, a 16U server rack is a good fit.
- How deep is your deepest device? Add at least 100 to 150 mm behind it for power cords and cable bends, then choose 600, 800 or 1000 mm depth.
- Indoors or outdoors? A climate-controlled room needs an indoor cabinet. Rain, dust, sun or wash-down means an IP66 outdoor cabinet, and maybe stainless steel. Check the difference between NEMA and IP ratings if you have a spec to meet.
- How much heat will it make? Add up the wattage. Light network loads are fine with fans; servers, PoE switches and sunny sites often need air conditioning. Sealed enclosures also need a plan for condensation.
- How will you mount, secure and cable it? Floor, plinth or pole; who needs keys; and where the cables come in. Our guide to sealing cable entries covers the outdoor side, and server rack grounding covers safety.
Prefer a second opinion? Send us your equipment list through the cabinet configurator and we will suggest a size, depth and cooling setup.
Where 16U Server Racks Work Best
Small offices and branch sites. One cabinet holds the internet handoff, firewall, switching, a small server and backup power, locked away from curious hands.
Security and CCTV systems. NVRs, PoE switches and a UPS fit easily, and outdoor versions keep recorders close to the cameras. See our outdoor security DVR enclosures for smaller options.
Telecom edge and private 5G. A sealed 16U cabinet gives radios, fiber and edge compute a protected home at the site. Our telecom edge cabinet solutions page goes deeper on these deployments.
Industrial, utility and campus networks. Factory floors, water treatment plants, parking structures and remote buildings all benefit from the balance of capacity and footprint. For rated enclosures, see NEMA-rated server racks.
16U vs 12U vs 20U: Is 16U the Right Size?
Choose a 12U cabinet if you only need a switch, a patch panel and a small UPS, especially when it can hang on a wall. Choose a 16U server rack when a server, NVR or deeper UPS enters the picture and you still want spare room. Move up to a 20U or 26U cabinet if you already need 13U or more today, or if you are consolidating two small racks into one. Mixing up these sizes is common, so it helps to compare all server rack cabinets side by side.
16U Server Rack FAQ
How tall is a 16U rack?
A 16U rack gives you 28 inches (711 mm) of usable mounting height, because one rack unit is 1.75 inches. The cabinet itself is taller once you add the top, base and casters. Our indoor 16U server rack cabinet, for example, stands about 35 inches (890 mm) tall.
What are the dimensions of a 16U server rack?
Every 16U server rack shares the same 28 in of vertical rack space and 19-inch mounting width. The footprint is what changes. STURDX 16U cabinets come in 600 or 800 mm widths and 600, 800 or 1000 mm depths, so you can match the cabinet to the deepest device you plan to install.
How much does a 16U server rack cost?
At STURDX, an indoor 16U server rack cabinet with a lockable tempered glass door starts at $690. Outdoor IP66 16U network cabinets start at $1,699 in galvanized steel, and climate-controlled versions with an air conditioner start at $2,100. Stainless steel, larger footprints and higher cooling capacity raise the price.
Is a 16U rack big enough for a small business?
For most small offices, branch sites and security systems, yes. A 16U rack comfortably holds a patch panel, a switch, a firewall, an NVR, one or two small servers, a PDU and a rack UPS, with a few units left over. If you already fill 13U or more on day one, step up to a 20U or 26U cabinet.
What depth should a 16U rack cabinet be?
Measure the deepest device and add room for cables and power behind it. A 600 mm deep 16U cabinet suits switches, patch panels and NVRs. Choose 800 mm for mid-depth servers and rack UPS units, and 1000 mm for full-depth servers or when you want generous space for fiber and cable management at the rear.
Can a 16U server rack be installed outdoors?
Only if the cabinet is built for it. A standard indoor 16U server rack is not sealed against rain or dust. For outdoor sites, use a 16U network cabinet rated IP66 and suitable for NEMA 4 applications, with gasketed doors, sealed cable glands and a cooling plan matched to the climate.
Does a 16U cabinet need cooling?
Indoors, a few fans or a ventilated room is usually enough for light network loads. Sealed outdoor 16U enclosures trap heat, so add up the wattage of your equipment, factor in sun exposure, and choose fans for mild loads or a cabinet air conditioner for higher heat loads and hot climates.
Should I buy a 12U or a 16U rack?
A 12U rack is often wall-mounted and suits a switch, patch panel and a small UPS. A 16U server rack is usually floor-standing, gives you four more units and fits deeper equipment, which makes it the safer choice once a server or NVR enters the plan.
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