To build a beehive box, purchase an unassembled beehive box, trim all hanging splinters, smooth any rough edges on each of the four pieces with a razor blade, and fit the pieces of the box together. Nail each of the sides together using the predrilled holes as a guide.
To ensure that the beehive box is symmetrical, apply clamps to each of the sides of the beehive box before nailing the sides together. Use a carpenter's square to ensure that each of the corners is square, and adjust the clamps if needed.
To make a beehive box from scratch, choose untreated wood in the dimensions 1-by-8-by-8 inches to build a medium box. Measure and mark the box pieces on the wood according to the desired size of the beehive box. Using the marks as guides, saw the length and height of each piece. To join the pieces together, cut out joints on each side panel piece using a speed router. Take the pieces, join them together, and reinforce each side by nailing each of the joining points together. Nail the bottom panel to the frame, and smooth off any rough edges or hanging splinters with a razor. If the beehive location is in the sun, paint the box white in order to regulate the interior temperature of the beehive box.