Reinforcing a high load wooden corner shelf

shelving

I would like to build a shelf capable of holding a maximum load of cca. 60Kg. The image show the placement of the shelf.

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Below is a conceptual drawing with the dimensions.

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The image shows the brackets serving as the main support for the shelf. They are capable of carrying far more than 60Kg but have a limited width.

This makes the "critical surface", the weakest link of the construction and the part most prone to breaking.

How would you approach this problem?

Best Answer

Really I think you need bigger brackets. Otherwise I'd consider ...

  • Make the wood thick
  • Select a strong species
  • Align the grain across the width (less chance of 40cm splitting off)
  • Extend the brackets using ~60cm pieces of wood as an intermediate support.
  • Screw a support rail along the wall up to the window.