📚 Record Storage Shelf Space Calculator

Enter how many records you have and the average spine width (single LPs are typically 5-7mm; gatefolds and box sets are wider) to see the shelf length needed.

How the shelf length is worked out

Records filed upright take space along the shelf equal to the thickness of their spines, so the sum is one multiplication and two conversions:

millimetres = records × average spine width
inches      = millimetres / 25.4
feet        = inches / 12

Two hundred records at 6 mm is 1,200 mm, which is 47.2 in or 3.9 ft. The average is what matters, not the typical record: a shelf of plain single LPs and one of mixed gatefolds and box sets need very different lengths.

Picking an average spine width

FormatSpine
Single LP, plain jacket5-7 mm
Gatefold, or double LP in one jacket8-12 mm
Outer poly sleeve on every recordadd about 1 mm each
Box set20-40 mm

Weigh the average toward what you actually own. If one record in ten is a gatefold, 6.5 mm is closer than 6. Then buy longer than the answer: a shelf filled to the last millimetre gives you nothing to grip, and pulling records out of a tight row scuffs the jackets. Around 90 percent full is comfortable, so treat 3.9 ft as needing 4.3 ft of usable run.

Check the load, not just the length. Two hundred LPs in their jackets weigh roughly 50 kg, all of it across those four feet. Long unsupported spans sag under that, and most flat-pack shelving is rated well below it - short spans, thick shelves and a fixing into the wall.

Frequently asked questions

How much shelf space do 100 records need?

About 600 mm at an average 6 mm spine, which is 23.6 in or just under 2 ft. Allow a little more if gatefolds and poly sleeves are in the mix.

How many records fit in an IKEA Kallax cube?

The opening is about 33 cm wide, so roughly 55 single LPs at 6 mm each. Most people load 50 or so, which leaves room to flip through them.

How deep should a record shelf be?

A 12-inch jacket is 12.4 in square, so 13 in or 33 cm of clear depth. Anything shallower leaves the jackets proud of the shelf edge where they get knocked.