If the problem is the cushions, you’re in for an easy fix. If the cushions seem fine upon inspection, you may have to replace the springs or the frame. Depending on the level of damage you may need to replace the entire couch. [2] X Research source
If you see any cracked wood, or wood that is “bowed” out, you’ll need to replace it. This will involve taking off most of the upholstery fabric and can be time-consuming. [3] X Research source You may have to remove some of the fabric on the bottom, known as a dust cover, to inspect the springs. Be gentle and take care not to rip the fabric. [4] X Research source
Determine whether your springs are bent or broken. If the springs are bent you may be able to fix them yourself. If they’re broken you may need to bring your couch to an upholsterer. Older couches tend to have coiled springs, while newer couches have zig-zag springs. Your couch may not have springs at all, depending on the quality of the frame. Check the space beneath the cushions. You may find that the slats or straps of the couch have snapped.
This is a good opportunity to wash the cushion covers.
If the foam has noticeable dents in it, you may need to replace the entire cushion. If the batting is worn, but the foam is fine, you can get by with just replacing the batting. [7] X Research source
When buying new pieces of foam core, make sure to cut them to size to replace the insides. You can also stuff your couch cushions with a different material if you prefer. You don’t have to use foam. Instead, you can find cotton, down, and even old clothing if you wanted to. The material you use will affect the softness of the couch. Make sure you like the firmness before you stuff every cushion. Consider the durability of your materials. Some materials may not hold up well, but foam padding could last you for years to come.
If you need to, take a slat for reference to make sure you get exactly what you need. You could also place a piece of plywood between the frame and the cushions for added support. This isn’t a permanent solution, and it could make the couch a little firmer than you’d like. [9] X Research source Use wood glue to seal the ends. Use a staple gun with long, thick staples, or a hammer and very thin nails, to secure the beam in place.
If you need to replace the springs, your best bet is to take your couch to a professional furniture repair shop. Replacing springs requires a specialized tool, such as a spring stretcher. [11] X Research source
Remove any fabric attached to the wood you’ll be replacing. Take care not to damage the fabric. [13] X Research source You’ll need to remove the springs that are attached to the frame, which will require the use of a special tool. This process can be dangerous, so be careful. [14] X Research source Once the springs and fabric have been safely removed, take the wood off the couch. [15] X Research source
Secure the board with wood glue and let it dry completely. [17] X Research source Reattach the spring clips to the new wood. This may require the use of a spring stretcher. Secure the clips with new screws. [18] X Research source
