How to Build a Toy Chest

Stand the triangular gable ends on edge with the cut-off corners to the back, 
and clamp them in place on top of each side of the bottom box. Use pieces of scrap wood to bridge the seam, and brace them so that they stay vertical. Be sure not to glue or nail these gable ends down—they are meant to be the forms on which the roof is built, and assembling the pieces in place on the box will ensure that the roof ends up straight.

Glue and nail the shorter roof section onto the gable ends, aligning it so that the angled edge is centered over the peak of the gables and the back edge is even with the back of the box. It should be perfectly centered at the top but overhang the cut-off corner of each gable by about ½ inch.

Position the front of the roof to meet up with the back so that the angled edges form a tight peak. The front of the roof should overhang the front of the box.