Shelf size + placement

Find the right shelf size, bracket spacing and placement for your wall.

Get the shelf proportions and bracket support layout right before you drill.

Use your wall and furniture measurements to find practical shelf proportions, vertical spacing and placement for a single shelf or a full grouping.

Find My Shelf Size →
90° corner
3 floating shelves • 48–60"

1. What kind of shelf are you placing?

Do you need a recommendation or are you checking shelves you already own?
This helps keep enough visual and practical clearance above the shelf.
What else is below or near the shelves?
Add multiple pieces if needed. Enter the actual width, height and depth of each item so the room preview reflects your space more closely.
Sofa / loveseat
Console / cabinet
Desk
Toilet
Bed / headboard
Buffet / sideboard
Dresser
Bench
Chair
End table
Lamp
Plant
Placement guidance is decorative planning guidance. Shelf weight capacity depends on shelf construction, brackets, anchors and wall structure. Use appropriate hardware and confirm manufacturer load limits before installation.

See it in your room

Upload a straight-on photo of the wall, set the scale using the usable wall width, then preview the full shelf grouping at proportional scale.

Uploaded wall
Upload your wall photo to preview the shelf grouping.
Drag markers to the edges of the measured wall width.
Arrange your room: move each shelf independently, then move and rotate the furniture or room pieces below it. Brackets stay attached to their shelf, and corner shelves remain complete 90° units.
100%
Upload a room photo to begin.

How to Choose Shelf Size, Spacing & Bracket Placement

A well-proportioned shelf should fit the wall, relate to the furniture or fixture below it, and leave enough room for the objects you want to display. Use the calculator above to turn your own room measurements into a practical starting point before you shop or drill.

How far apart should shelf brackets be?

Bracket spacing depends on the shelf length, shelf material, expected load, wall structure and the bracket manufacturer’s requirements. For bracketed shelves, the calculator provides a planning layout with the suggested number of supports, approximate on-center spacing, end overhang and individual bracket positions. Whenever possible, align supports with appropriate wall structure and verify the hardware’s installation and load requirements.

How long should a shelf be?

The best shelf length depends on the usable wall width and what sits below it. Shelves above sofas, consoles, desks, beds and toilets usually look more intentional when they visually relate to the furniture or fixture instead of stretching from wall to wall.

How much vertical space should I leave between shelves?

Start with the calculator’s recommended spacing, then consider the height of books, frames, plants and other objects you plan to display. Taller decor needs more breathing room than small accessories or picture ledges.

Frequently Asked Questions

How far apart should shelf brackets be?

There is no single spacing that works for every shelf. Shelf length, material, load, bracket type and wall structure all matter. Choose “Shelf + Brackets” in the calculator to get a planning estimate for the number of brackets, spacing, end overhang and support positions for your shelf.

How far from the end of a shelf should brackets go?

The outer brackets are generally inset from the shelf ends rather than placed directly at the edges. The calculator estimates an end overhang based on the planned shelf length and shows the bracket positions measured from the left end.

Do shelf brackets need to go into studs?

Wall structure and mounting hardware affect how a shelf can safely be installed. Whenever possible, use appropriate structural support and follow the shelf, bracket and anchor manufacturer’s instructions and load limits.

How high should I hang a shelf above furniture?

That depends on what is below the shelf. The calculator considers whether you are placing shelves above a sofa, console, desk, bed, toilet or other furniture and provides a starting placement range for that situation.