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Rack Designer

Drag & drop servers, switches, firewalls, storage, UPS and PDUs into a rack — and watch power, heat, weight and PDU load update live. Plan multiple racks, then export a clean PNG or JSON. Everything runs in your browser; nothing is uploaded.

FreePrice
Client-sidePrivacy
NoneAccount
SwitzerlandMade in
Racks
1
Devices
0
Avg usage
0%
0/42 U
Power
0 W
0.00 kVA
Load @230V
0.0 A
Heat
0
BTU/hr
Weight
0 kg
Equipment
Servers
Generic 1U Server
1U · 300W
Generic 2U Server
2U · 450W
Generic 4U Server
4U · 700W
Generic Blade Chassis (7U)
7U · 2400W
Dell PowerEdge R650
1U · 350W
Dell PowerEdge R750
2U · 500W
Dell PowerEdge R940
2U · 800W
HPE ProLiant DL360
1U · 300W
HPE ProLiant DL380
2U · 460W
Supermicro SuperServer 2U
2U · 400W
Network
Generic 48-Port Switch
1U · 65W
Generic 24-Port Switch
1U · 40W
Cisco Catalyst 9300
1U · 55W
Cisco Catalyst 9500
1U · 80W
Aruba Aruba 6300M 48G
1U · 55W
Ubiquiti UniFi 48-Port
1U · 35W
Generic Core Switch (2U)
2U · 150W
Generic Router (1U)
1U · 60W
Security
Generic Firewall (1U)
1U · 80W
Fortinet FortiGate 100F
1U · 35W
Fortinet FortiGate 500G (2U)
2U · 95W
Palo Alto PA-820
1U · 100W
Generic IDS/IPS Appliance
1U · 75W
Storage
Generic NAS (2U)
2U · 200W
Generic NAS Array (4U)
4U · 350W
Generic SAN Appliance (2U)
2U · 280W
Synology RackStation (4U)
4U · 220W
Power
Generic Rack PDU (1U)
1U · passive
APC AP8941 Metered PDU
1U · passive
APC Smart-UPS 750 (1U)
1U · 750W
APC Smart-UPS 1500 (2U)
2U · 1500W
Eaton Eaton 5P UPS (3U)
3U · 2200W
Patch / Cable
Generic 24-Port Patch Panel
1U · passive
Generic 48-Port Patch Panel
1U · passive
Generic Fiber Patch Panel
1U · passive
Generic Cable Manager (1U)
1U · passive
Generic Cable Manager (2U)
2U · passive
Management
Generic KVM Switch (1U)
1U · 25W
Generic KVM LCD Console (1U)
1U · 30W
Generic Out-of-Band Manager
1U · 20W
Lantronix Console Server (1U)
1U · 15W
Blanks / Shelves
1U Blank Panel
1U · passive
2U Blank Panel
2U · passive
1U Shelf
1U · passive
Layout
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0/42U · 0 W · 0 kg
Properties
Rack 1
0/42 U used · 0%
Power0 W
Heat0 BTU/hr
Load @230V0.0 A
Weight0 kg

Click equipment on the left to drop it in the next free slot, or drag it to an exact position. Click a placed device to edit it.

Click addDrag place / moveDel remove

How the numbers are calculated

Every metric updates live as you place gear — here is exactly what each one means.

Power (W / kVA)Sum of every device nameplate wattage. kVA = W ÷ 0.9 (power factor) ÷ 1000.
Load (A)Current draw at 230 V line voltage: A = W ÷ 230. Size your PDU and breaker above this.
Heat (BTU/hr)Cooling load: BTU/hr = W × 3.412. Everything a device consumes becomes heat to remove.
Weight (kg)Sum of realistic per-class device weights — check it against your rack’s static load rating.
Usage (%)Occupied U ÷ total U. Leave headroom for airflow, cable management and growth.

Rack planning tips

  • Put the heaviest gear (UPS, storage arrays) at the bottom — it lowers the centre of gravity and keeps the rack stable.
  • Reserve 1–2U of blanking panels between hot zones so cold aisle air isn’t recirculated through gaps.
  • Keep a PDU per power feed (A/B) and split dual-PSU servers across both for redundancy.
  • Group switches near a cable manager and patch panels to keep runs short and serviceable.
  • Aim for ~70–80% U usage max — a fully packed rack fights airflow and leaves no room to grow.

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