Bibliothèque Billy IKEA blanche avec livres et décoration dans un salon lumineux au style scandinave, plante verte à côté.

Complete Guide: Everything About the IKEA Billy Bookcase

par Ombre Intérieur Jun 26, 2026
Sommaire

    The IKEA Billy bookcase is much more than just a storage unit: it's an icon of Scandinavian design, a modular system adaptable to any space. Since its launch in 1979, it has won over millions of homes thanks to its unbeatable value for money and versatility. In this comprehensive guide, we explore in detail the dimensions, models, customisation tips, and alternatives to the Billy. Whether you're looking for an IKEA BILLY bookcase with doors to hide clutter, an extra shelf to expand your collection, or ideas to transform your interior, you'll find all the essential information here.

    Key Takeaways
    • The Billy comes in several widths (40, 60, 80 cm) and heights (106, 202, 237 cm), with a standard depth of 28 cm or 40 cm.
    • Each shelf supports up to 30 kg of evenly distributed weight, but it's advisable not to exceed 13-15 kg per shelf to avoid warping.
    • Models with doors (glass or solid) offer an elegant solution to hide contents while protecting from dust.
    • Multiple Billy units can be joined together using connecting screws (not supplied) to create custom configurations.
    • Alternatives like Kallax, Hemnes, or specialised brands (Ombre Interieur) may suit your aesthetic and budget needs.

    Different Types and Models of Billy

    Standard Billy Bookcase

    The basic model comes in widths of 40, 60, and 80 cm, with a height of 106 cm (low model) or 202 cm (tall model). The depth is typically 28 cm, ideal for paperbacks and decorative items. The IKEA BILLY depth 40 cm version is perfect for large books or vinyl storage.

    Billy with Doors

    The IKEA BILLY bookcase with doors comes in glass (to display) or solid (to hide) versions. Doors are available in white, black, or wood finish. They fit 40, 60, and 80 cm wide models.

    Billy Extra Shelf

    To increase capacity, IKEA sells IKEA BILLY extra shelves (ref. 002.638.56) that attach easily. Each shelf measures 76x28 cm and supports up to 14 kg.

    Billy with Integrated Lighting

    Some recent models, like the new IKEA Billy (2023), feature a discreet LED lighting system. This frees up space for storing items without bulky lighting fixtures.

    How to Choose Your Billy: Essential Criteria

    Dimensions and Available Space

    Before buying, measure your wall space. The IKEA BILLY dimensions vary: width 40, 60, or 80 cm; height 106, 202, or 237 cm (with extension). The 28 cm depth is standard, but opt for the 40 cm version if you store wide books or binders.

    Intended Use

    For a main bookcase, choose the 202 cm height. For under-window storage, the 106 cm low model is perfect. If you want to display decorative items, pick the version with glass doors.

    Style and Finishes

    The Billy is available in white, black, birch, light oak, and grey. White is the most versatile, while black adds a contemporary touch. Wood-look finishes blend into warmer interiors.

    Maximum Load

    How much weight can a Billy shelf hold? Officially, each shelf can support up to 30 kg, but in practice, it's recommended not to exceed 13-15 kg to prevent the shelf from warping over time. Heavy books (encyclopedias) should be evenly distributed.

    How to Assemble and Fix Multiple Billy Units Together

    Can you attach Billy shelves together? Yes, it's possible! To join two bookcases side by side, use connecting screws (not supplied, diameter 4 mm, length 20-25 mm). Drill holes in the side uprights at the same height, then screw in. This creates a stable, gap-free composition.

    For wall mounting (recommended for safety), use the supplied plugs and screws. If you have children or pets, anchor the Billy to the wall using the IKEA safety bracket.

    Mistakes to Avoid with a Billy

    • Overloading shelves: respect the maximum load of 13-15 kg per shelf, especially for 28 cm depth models.
    • Neglecting wall anchoring: a tall unfixed Billy can tip over. Always use the supplied fixing kit.
    • Ignoring depth differences: if you combine 28 cm and 40 cm deep Billy units, they won't align. Stick to a uniform depth.
    • Forgetting clearance space: to open doors, leave at least 50 cm in front of the bookcase.
    • Choosing the wrong height: a 202 cm Billy can feel imposing in a small room. Measure your ceiling height.

    Billy Model Comparison Table

    Model Dimensions (W x H x D) Advantages Recommended Use
    Billy 40x202x28 cm 40 x 202 x 28 cm Narrow shelves, ideal for small spaces Hallway, children's room
    Billy 60x202x28 cm 60 x 202 x 28 cm Standard width, good balance Living room, office
    Billy 80x202x28 cm 80 x 202 x 28 cm Large capacity, impressive Main bookcase
    Billy with glass doors 60x202x28 cm 60 x 202 x 28 cm Dust protection, clean look Living room, dining room
    Billy depth 40 cm 60x202x40 cm 60 x 202 x 40 cm Deep storage, for vinyls or large books Studio, collector

    Decoration and Customisation Ideas

    Transform the Billy with Doors

    Add doors to create a custom IKEA BILLY bookcase with doors. Glass doors showcase your items, while solid doors hide clutter. Paint the doors in a contrasting colour for a designer effect.

    Play with Colours and Accessories

    Use storage boxes, wicker baskets, or wooden crates to structure the space. LED lights (strips or spots) add a warm ambiance. The new IKEA Billy with integrated lighting is ideal.

    Wall Compositions

    Combine multiple Billy units of different heights to create a dynamic storage wall. For example, a 202 cm Billy in the centre flanked by two 106 cm Billys. Fix them together for stability.

    Alternatives to the IKEA Billy Bookcase

    While the Billy is a safe bet, other options exist:

    • Kallax: honeycomb structure, ideal for vinyls and storage bins.
    • Hemnes: solid wood, more upscale, with traditional finishes.
    • Bestå: modular system with doors and drawers, perfect for a modern living room.
    • IKEA BILLY alternatives: brands like Ombre Interieur offer solid wood or metal shelves with more unique designs.

    Maintenance and Longevity Tips

    Cleaning

    Dust regularly with a soft cloth. For stains, use a damp cloth and mild soap. Avoid abrasive products that scratch the melamine surface.

    Repair

    If a shelf warps, you can flip it (curved side up) to restore flatness. For loose screws, use wood glue.

    Optimal Storage

    To maximise space, use bookends or boxes. Extra shelves allow you to adjust the height between shelves.

    Conclusion

    The IKEA Billy bookcase remains a go-to storage solution thanks to its modularity, affordable price, and ease of assembly. Whether you opt for a standard model, one with doors, or the 40 cm depth version, you can create a custom storage space that fits your interior. For those seeking more design-driven alternatives or premium materials, explore our collection of bookcases and shelves at Ombre Interieur, where each piece is designed to blend aesthetics and functionality.

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    Frequently Asked Questions

    What is a Billy shelf?
    The Billy shelf is an iconic modular bookcase from IKEA, launched in 1979. It consists of uprights and height-adjustable shelves, available in several widths (40, 60, 80 cm) and heights (106, 202, 237 cm). Its standard depth is 28 cm, but a 40 cm version exists for larger items.
    How much weight can a Billy shelf hold?
    Each Billy shelf can support up to 30 kg of evenly distributed weight, but it is recommended not to exceed 13 to 15 kg per shelf to avoid long-term warping. Heavy books should be evenly distributed.
    Can you attach Billy shelves together?
    Yes, you can assemble multiple Billy units side by side using connecting screws (not supplied). Drill holes in the side uprights at the same height and screw in. This allows you to create stable compositions without gaps between the bookcases.
    What are the alternatives to the IKEA Billy bookcase?
    Among the alternatives are the Kallax (honeycomb structure, ideal for vinyls), Hemnes (solid wood, traditional style), and Bestå (modular with doors). Brands like Ombre Interieur also offer solid wood or metal shelves for a more unique design.

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