The structure of this tray for the armrest of the sofa is very simple. To make it, you have to cut a lot of wooden strips and glue them in parallel on a flexible fabric.
To start, cut your wooden slats from several long slats. To make it faster and not have to go one by one, tie the long slats together with some masking tape and cut them all at once. Mark the lengths of the pieces with a pencil and cut with a jigsaw.
In our case, the tray is made up of 25 slats each 18 cm long.