Building a couch can be a fun and rewarding DIY project. There are various couch designs that you can build using materials from your local home center. Here is an overview of popular couch-building plans:

1. DIY Two-Piece Upholstered Sectional Couch: This modern sectional couch is built using two-by-fours for the base and plywood for the back and sides. The cushions are made from foam cut to size and enclosed in envelope-style cushion covers. This couch is great for spaces with narrow hallways or where a traditional couch won’t fit.
2. DIY Plywood Couch / Daybed: This daybed-style couch is made primarily from 3/4-inch plywood, making it a simple and cost-effective build. It features a design where pillows form the seatback in sitting mode and can be removed to reveal a 36-inch-wide bed. This couch is ideal for small apartments, guest rooms, or home offices.
3. DIY Twin-Bed Couch: This couch converts into a twin-size bed by sliding out the bed portion. The slats on one half of the bed and the couch side are interwoven, making it easy to switch between the two functions. This couch is comfortable, with a built-in bookshelf and armrest.
4. DIY Platform Couch: This platform couch has a flat base where the cushions rest, eliminating the need for complicated upholstery coil springs. The frame is made from maple and can be easily customized to match your preferred style. It’s a versatile option for both interior and exterior spaces.
5. DIY Storage Couch: This couch design features a seat that flips up to reveal hidden storage space underneath. It’s a practical solution for maximizing space in your room, allowing you to store pillows, sheets, and other items. The upholstered seat is made from camping foam rubber and can be covered with painter’s canvas drop cloths for a cost-effective upholstery option.

When building any of these couches, you’ll need various tools such as a miter saw, drill, circular saw, and nail gun, depending on the specific design. Follow the provided instructions from the respective DIY plans to complete the construction process successfully.

Note: It’s important to ensure the structural integrity and stability of the couch during the building process. If you have concerns or need assistance, it’s recommended to consult with a professional or experienced woodworker.