Drive the nails are not perpendicular to the plane, and a bit of an angle, by driving a few nails at different angles, you are much stronger than connect details.

This process largely depends on the size of the nails: it is more convenient for small nails to be clogged with a small hammer (up to 250 g), and for a length of more than 80-100 mm - with a hammer weighing 400-500 g. Begin to pound lightly, and making sure that the nail enters correctly, -There are sharp blows. So avoid splitting the tree and get a tight joint. And for greater strength, select a long nail that enters the main part of the structure by at least one third. Nails driven at an angle to each other, will ensure the rigidity of the structure.