Of course you can! We just ask that the boxes you choose are as sturdy as the ones we sell. They must be made of double-walled cardboard which means you should see at least two layers of zigzags when you look closely at the edge of the box.
Please don’t risk damage to your stuff by using any old box. Never use boxes, like crisp boxes, which were originally intended for another purpose. Your box needs to be heavy-duty, so if it’s second-hand, it’s probably not suitable. LOVESPACE packing materials are double-walled and made of corrugated cardboard and are designed to handle up to 25kg of contents. You can see our full range of boxes and buy them here.