Tech & Network / Everyday tools

Rack layout planner

Give every device its place. Build a shared front and rear rack elevation with generic equipment, clear U positions and a layout file that stays on your device.

My rack layout

U1 is at the bottom. Drop aligns the top edge of the equipment to the row under your pointer. Select an item to edit it.

Known loads & limits

Equipment list

Select any item to edit it using the labeled fields.

Local files only. Nothing is uploaded. Save your layout before leaving this page.

The working, clearly explained

Behind the numbers.

FIGGYR / FIELD NOTES

How it works

U labels run upward from U1 at the bottom. Each item reserves its full U span through the rack, regardless of which way it faces. Front and rear are views of the same equipment, counted once. The planner prevents overlap and placements outside a 1–60U rack. It does not model independent shallow equipment mounted in the same U on opposite sides. Optional load totals use only entered values; missing attributes remain unknown.

The formulaOccupied U = sum of equipment heights
Free U = rack height − occupied U
Top U = bottom U + equipment height − 1
Known load = sum of entered equipment values

Put it into practice

EXAMPLE

In a 24U rack, a 2U server at bottom U1 occupies U1–U2. A 1U switch at U3 leaves 21U free. The rear view shows those same items and the same capacity.

EXAMPLE

A known 15 kg server and an item with no entered weight produce a known subtotal of 15 kg plus one unknown weight. A limit warning can identify a known overload, but a subtotal below the limit cannot establish compatibility.

Good to know

Should I choose 2-post or 4-post?

Choose the rack you actually have. A 2-post rack may require compatible center-mount kits or rated shelves; equipment depth, center of gravity and load ratings matter. A 4-post rack requires compatible rails, front-to-rear rail spacing and usable depth. U height alone does not establish mounting compatibility.

What do depth, weight and power checks cover?

They compare your entered dimensions and loads with your entered limits. No limits are assumed. Usable depth is an overall clearance check, not rail spacing. Weight excludes unentered accessories; power excludes unentered loads and does not size circuits or UPS runtime. Check mounting hardware, ventilation, cable clearance, anchoring, floor loading and manufacturer ratings separately.

Where is the layout stored?

The editor runs in your browser. Save a JSON layout file to keep your work; load it later on this page. Files are not uploaded. There is no automatic cloud or browser storage of layouts. Save before closing the tab.

Can I use it without dragging?

Yes. Choose an equipment type, enter a bottom U and height, and add it. Select an item from the equipment list to edit, move it up or down by 1U, duplicate it into the first available gap, or delete it.

How do I export a diagram?

Use Print / save PDF for labeled front and rear elevations and an equipment schedule. Your browser supplies the print or PDF destination. Very tall racks may span pages; use the print preview to choose paper and scaling.