There are four components in a drawer; the sides, both the front and back, the bottom and the face. The sides are typically manufactured from 1/2-inch material. Front and back structural part of the drawer is typically made from 3/4-inch material. The bottom is nearly always made from 1/4-inch material. These components can be made from solid wood, particleboard, plywood, or composite material such as hardboard. The face is nearly always hardwood.
Measure the depth of the cabinet in front of this opening to the back of the cabinet. Insert the tape into the opening all of the way to the back for this dimension. Measure the height of the drawer opening vertically. Each drawer opening will require two pieces utilizing this formula for the sides. For example; if the drawer opening is 4 inches tall and 22 inches deep, the drawer will require two pieces 1/2-by-4-by-22 inches.
Measure the depth of the cabinet. Measure across the drawer opening horizontally. Each drawer will require one bottom piece utilizing this formula. For example; if the flat dimension is 18 inches, and the depth of this cabinet measures 22 inches the drawer will require one piece, 1/4-by-18-by-22 inches.
Measure the height of the drawer opening. Measure the width of the drawer opening. Each drawer will require two pieces utilizing this formula for the front and back pieces. For example; if the elevation is 4 inches and the width is 18 inches, the drawer will require two pieces 3/4-by-4-by-18 inches.
Gauge the height and width of the drawer opening and then include 1-1/2 inches to acquire the face size of this drawer. For example, if the drawer opening steps 18-by-22 inches, you’ll need to cut one piece 3/4-by-19 1/2-by-23 1/2 inches.