Quick answer
What are the dimensions of an IKEA KALLAX?
Current US KALLAX shelf units are 15⅜ inches deep. The 2×2 is 30⅛ × 15⅜ × 30⅛ inches assembled, the 2×4 is 30⅛ × 15⅜ × 57⅝ inches, and the 4×4 is about 57⅞ × 15⅜ × 57⅝ inches. Package dimensions are separate and may include more than one box.
Size reference
All KALLAX sizes and dimensions.
Assembled W, D, and H describe the finished shelf unit. Package size and weight describe what must travel through the door or vehicle; the current 4×4 ships as two packages. These white US shelf units were checked against IKEA on September 1, 2026.
| Model | Assembled W | Assembled D | Assembled H | Package Size | Package Weight |
|---|---|---|---|---|---|
| KALLAX 1×4002.758.48 | 16.375" 42cm | 15.375" 39cm | 57.625" 147cm | 60¾" L × 16" W × 4¾" H | 30 lb 14 oz |
| KALLAX 2×2206.316.39 | 30.125" 77cm | 15.375" 39cm | 30.125" 77cm | 31¾" L × 16¼" W × 7½" H | 37 lb 8 oz |
| KALLAX 2×4206.316.63 | 30.125" 77cm | 15.375" 39cm | 57.625" 147cm | 59" L × 15¾" W × 6½" H | 68 lb 5 oz |
| KALLAX 4×4302.758.61 | 57.875" 147cm | 15.375" 39cm | 57.625" 147cm | 2 packages: 59½ × 15¾ × 6¼"; 56½ × 15¾ × 4¼" | 39 lb 11 oz + 42 lb 11 oz |
In context
KALLAX size examples.
KALLAX 2×2 and 2×4 dimensions
The current white 2×2 is 30⅛ inches wide, 15⅜ inches deep, and 30⅛ inches high. The 2×4 keeps the same width and depth but reaches 57⅝ inches high when upright; always identify orientation when comparing a KALLAX size.
KALLAX box dimensions for transport
The 2×2 ships in one 31¾ × 16¼ × 7½ inch package, while the 4×4 ships in two separate packages up to 59½ inches long and 15¾ inches wide. Test each package—not the assembled cube grid—against the vehicle and the full delivery route.
Run a check
Will your KALLAX fit?
Measure smart
What to measure.
Four numbers decide nearly every fit check. Get these right and the rest follows.
- 01The assembled width, depth, and height at the widest points, including feet, handles, and any headboard or back panel.
- 02The flat-pack box dimensions, which is what you actually carry up the stairs and load into the car, not the built piece.
- 03The item's smallest dimension, which decides whether tilting or turning it on edge gets it through a tight opening.
- 04The clear opening of every space on the route, measured to the gap and not the frame, plus diagonal clearance at any turn.
Don't make these
Common mistakes.
Most “it didn't fit” stories trace back to one of these oversights.
- ⚠Measuring the assembled piece when the flat-pack box is what has to clear the door and the trunk.
- ⚠Forgetting that a tall unit close to 80 inches is right at standard door height before trim and flooring eat into it.
- ⚠Assuming a long box fits a sedan trunk when it really needs folded seats or an SUV cargo bay.
- ⚠Planning the doorway but ignoring the turn at the top of the stairs or the landing pivot.
Go deeper
Calculators and other IKEA products.
Frequently asked
Questions we keep getting.
What KALLAX sizes are compared here?
This page compares four current white US shelf units checked against IKEA: 1×4 (16⅜ × 15⅜ × 57⅝ inches), 2×2 (30⅛ × 15⅜ × 30⅛ inches), 2×4 (30⅛ × 15⅜ × 57⅝ inches), and 4×4 (about 57⅞ × 15⅜ × 57⅝ inches).
01What are the KALLAX flat-pack box dimensions?
The current 1×4 package is 60¾ × 16 × 4¾ inches, the 2×2 is 31¾ × 16¼ × 7½ inches, and the 2×4 is 59 × 15¾ × 6½ inches. The 4×4 ships as two packages, so both listed package dimensions and weights matter for transport.
02How much weight can a KALLAX shelf hold?
IKEA lists a 29 lb maximum load per shelf for these KALLAX units when used in the specified orientation. Follow the product-specific installation instructions and securely anchor the unit with hardware suitable for the wall.
03What is the difference between KALLAX and BILLY?
KALLAX uses an open cube grid system (13" cubes) ideal for bins and baskets. BILLY is a traditional bookcase with adjustable shelves. KALLAX works better as a room divider since it looks finished from all sides; BILLY has an unfinished back.
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