IKEA Hacks – Kallax Storage Units

The Kallax is a multi-functional shelving and storage unit. In this Ikea Kallax hack Hack we change it to create a seat and sideboard with storage.

The Legheads Barcelona M8 furniture legs, turn the Kallax into a fresh and vibrant sideboard that can be used to sit on or as storage. Perfect for the kids room or the lounge area.

In this Ikea hack we show you how easy it is to convert an Ikea Kallax series shelf into a functional sideboard or raised cabinet with Legheads replacement furniture legs.

Simple installation and fresh colors make this a pretty great hack. Instantly transform your Kallax into a funky piece of furniture and get some great storage at the same time. Legheads “Barcelona” sofa and couch leg is 6 inches high and can hold up to 440lbs per leg, so it is super strong.

Legheads make replacement furniture legs and furniture risers to fit any piece of furniture than can take a hangar bolt. They are IKEA compatible with the M8, 8 mm hangar bolt out of the box but also include a universal adaptor plate (as seen in this video) so you can add to any furniture, Ikea or not. They also have built in furniture pads or furniture feet to protect your floors.

What tools you need for this Kallax Ikea hack:

Replacement IKEA Furniture Legs, Sofa Legs, Couch Legs, Bed risers

  • Kallax series shelving unit – single set (Size 16 1/2×57 7/8 “) $US59.95
  • Legheads replacement furniture legs  – $US29.95 for a set of 4
  • T-Plates or attachment plates – Search M8 attachment plates on Amazon
  • Drill + 1/8″ or 3mm and 5/16″or 8 mm drill bits
  • Ruler + Tape measure
  • Pencil + Masking tape
  • Screw driver

Love to hear from you. Please leave a comment!!

You can purchase the Kallax online from IKEA USA for $59.99.

Detailed Hack instructions below.

Watch the Ikea Kallax Hack video


Ikea Kallax Hack Instructions

How to hack the Ikea Kallax storage units into a bench with Legheads Barcelona M8

Step 1

Place constructed Ikea Kallax on its side, with the shelves facing out.

Step 2

Place the universal plates flat on the side that will face the floor, in the position where you want legs to go. We would recommend placing the legs on a flat surface and measuring in at least 1 to 1.5 inches in from the side.

Tip #1: Always place on flat surface

Tip #2: Place away from edge to make it stronger. 

Step 3

Put legs in middle for extra support. Mark drill holes, including hanger (middle) hole.

Step 4

Drill pilot holes. 5/64 or 2mm for outside 5/16 or 8mm for inside. Be really careful here not to drill through the other side. If you do, just cover it with a small sticker, no-one will ever see it.

Tip #4: Place tape on your drill bit to show you where to stop drilling, you don’t want to drill through to the shelf

Step 5

Screw plates on. Legheads comes with long screws, they can be used in this hack with no fear of pushing through the other side.

Step 6

Screw in Legheads Barcelona M8 – You can buy them here 

Step 7

Change colours & accessorize to suit your mood

The best way to understand this Ikea hack is to watch the video.

ENJOY and please leave a comment, we would love to hear your feedback.

Customer Product Reviews

Take a look at what our customers think. 100% verified purchase and unbiased reviews here.

8 Replies on IKEA Hacks – Kallax Storage Units

  • Katrina MILLER says:

    Hello. What would the total height of the Kallax shelf be after the legs are attached? And could this work as a Banquette for my kitchen table? Used almost daily? thanks

    • TJ says:

      Hi Katrina,

      Thanks for asking a great question. This is a favorite with ikea hackers for Kallax

      The single Kallax when on its side is 42 cm or 16.5 inches high. Legheads are 15.25 cm or 6 inches high.

      In total in that is 57.25 cm or 22.5 inches

      If you add our Ikea legs to the double Kallax (on its side), which we have done in our home, in total it is 92.25 cm or 36 inches in total height. We recommend securing the double or any other Kallax hack that is higher than the single to the wall for safety.

      You do need to use a t-plate or a furniture leg attachment plate. Our furniture leg attachment plate is completely flat and extra heavy duty. It is 3 mm or 0.12 inches, solid polished stainless steel.

      All the best


  • Amy says:

    Hello, I am so worried to do this to my kallax as the timber feels so hollow when I knock on it you can hear it’s hollow. I have an image of me trying to move it someday and the legs bending off due to me screwing into hollow wood. Could you confirm how this is possible If unit is hollow. Seems so unstable to even think about adding weight to it if legs are balancing on a screw that’s hanging out In the hollow air🤪thanks in advance

    • TJ says:

      Hi Amy,

      Thanks for contacting Legheads. The Kallax is hollow, but is sturdy and is thick enough to take the legs and the attachment plates (always use an attachment plate, never screw the legs in directly). You do need to take care when installing them, be gentle, use a hand screw driver not an electric one and don’t over screw. When the screw takes, is fully in and feels firm, just leave it there.

      I have two Kallax hacks set up with Legheads and they work perfectly, we sit on them, we use them as tables and we use them as storage, we move them around frequently and never had any trouble with the legs bending or breaking from the wood. I use 6 legs for each Kallax hack and would recommend the same.

      Follow the video instructions and you should be fine. Please search M8 attachment plates on Amazon in your region to find the attachment plates.

      All the best


  • Rebekah Harper says:

    I love this hack! I would love to hack the kallax 2×4 or the Kallax used in this project. However I want it to be upright so would it still be ok to add the legs to the shelves? Any advice would be greatly appreciate

    • TJ says:

      Hi Rebekah,

      Thanks for the question, so glad you like this Ikea hack. Yes you can use Legheads furniture legs on the IKEA Kallax in an upright position, but you must attach the Kallax to the wall. IKEA recommend you attach it to the wall in this position even without legs. You can get the braces for free from most IKEA spare parts counters in IKEA stores. The part number you are after is 115753. You can see a picture of it in this catalogue on page 15 https://www.ikea.com/au/en/assembly_instructions/kallax-shelving-unit__AA-1892854-3_pub.pdf

      The legs themselves are super strong and won’t be an issue. I recommend 6 legs for this project.

      All the best


  • AR says:


    Very informative. I got a 71 x 71 kallax which is a 5 row and 5 column shelf. Planning to add legs to it. Will 6 legs be sturdy to hold it or should i add more legs ?

    • TJ says:

      Hi Ararchana2000,

      I would recommend 8 legs for the 5×5, as it is a big piece of furniture. I can’t see an issue with this Ikea hack as long as you fix to the wall in multiple places and use good quality attachment plates. Even though the Kallax is hollow, with spaced out placements of legs and braces it is still sturdy.

      You can get the braces to attach the Kallax to the wall for free from most IKEA spare parts counters in IKEA stores. The part number you are after is 115753. You can see a picture of it in this catalogue on page 15 https://www.ikea.com/au/en/assembly_instructions/kallax-shelving-unit__AA-1892854-3_pub.pdf

      All the best


Leave a Reply

Your email address will not be published.