The reference
This reference looks at BILLY Height extension unit, white, 31x11x14 " to help you compare furniture scale, material and visual balance. The values below belong to the named product, material, edition or care reference.
Published details
| Detail | Published reference |
|---|---|
| Width | 31 1/2 " |
| Depth | 11 " |
| Height | 13 3/4 " |
| Article number | 80525278 |
Values identify the named product, material or edition. Missing specifications are not inferred from a similar model or its photograph.
Make the comparison useful
Read the actual dimensions
The published dimensions are width 31.5 in, depth 11 in, height 13.75 in. Identify the finished outside edge before comparing it with a room measurement; a product name alone does not establish clearance.
Leave room to use it
Draw the footprint, then add the space needed for the real activity around it. Opening a drawer, moving a chair and passing a person are additional space requirements, not part of a product’s outside dimensions.
A footprint calculation
The listed width and depth/length give a rectangular bounding footprint of 31.5 × 11 in, or 346.5 square in. This calculation describes a bounding rectangle only. It adds no walking clearance, opening allowance or installation space.
This is an editorial planning example, not a product test or manufacturer recommendation.
Compare within this collection
These entries come from the same shelves and bookcases collection. Compare the published values and the exact format or edition; a blank specification is not a poor score or a reason to assume equivalence.
| Detail | BILLY Height extension unit, white, 31x11x14 " | BILLY / OXBERG Bookcase comb w glass doors, brown walnut effect, 63x79 1/2 " | BILLY / OXBERG Bookcase with panel/glass doors, brown walnut effect, 31 1/2x11 3/4x79 1/2 " |
|---|---|---|---|
| Width | 31 1/2 " | 63 " | 31 1/2 " |
| Depth | 11 " | 11 3/4 " | 11 3/4 " |
| Height | 13 3/4 " | 79 1/2 " | 79 1/2 " |
| Article number | 80525278 | s39483530 | s69483326 |
| Max load/shelf | Not listed in this reference | 66 lb | 66 lb |
Sources and scope
Prepared October 28, 2026. The linked manufacturer, publisher or care reference establishes the facts it publishes. Use the exact edition, variant and current instructions when a decision depends on them. Editorial standards.
