The Bunnings Workshop community can help with your home improvement projects.
Welcome to the Bunnings Workshop community @cate101.
I trust @TheCouchman appreciates your kind comment.
It appears they have used a rebated joint as per the image below. It also looks like they have screwed through the seat into the legs with something similar to Buildex 14-10 x 75mm Climacoat Bugle Head Batten Timber Screws.
Were you thinking of making a project like this? It is certainly a very minimalistic and functional design. I've been wanting to make something like this for a while.
We look forward to hearing about your own projects around the house and garden and would encourage you to let us know if you ever need assistance or would like to share them with the community. I'm sure you'll find loads of inspiration from our members as they are contributing their ideas here every day.
Mitchell
Great job ! Good proportions too 😆
Workshop is a friendly place to learn, get ideas and find inspiration for your home improvement projects