No. 4. Shows two pieces fastened edge to edge by dowels. This joint is often made without the dowels; the two strips, after jointing or fitting, being glued and rubbed together—sometimes called a rubbed joint.
No. 5. A butt joint fastened by nails, brads, or screws, common in box construction.
No. 6. A butt joint where the pieces are not at right angles, owing to the slant. This is called the hopper joint and it is fastened with nails or brads.
No. 7. End lap. A joint much used in house framing.
Fig. 154. Joints used in construction