The DB (Deere/Bauer) line of planters are front-folding, large-frame planters that offer the greatest field productivity in the industry. These large planters utilise three- or five-section frames that flex to match ground contour but also fold to a very manageable transport width. DB planters are offered in a variety of frame sizes and row-spacing options. These planters range from 44 ft to 90 ft (13.4 m to 27.4 m) in planting width. Row spacings of 20 in. (508 mm), 22 in. (558 mm), and 30 in. (762 mm) are available.