The webbing sits under the cushion — not in it — to give the seat the support needed to sustain body weight. To create repairs to sagging cushions or before reupholstering or refinishing a seat, begin with replacing the webbing. You can find jute webbing straps in fabric stores where upholstery supplies are offered, from a neighborhood upholstery shop, or from various online sites.
Eliminate the cushion from the seat to expose the webbing straps. Take the cloth cover in case your seat includes a dust cover over the webbing. Pry the fundamentals up with a small flat-tipped screwdriver that holds the cover in position or use pliers to pull them out.
Take a picture with your phone or camera of the existing webbing in place so you realize how to weave it once you replace it. The webbing typically follows a plain weave pattern, one over, one under. Eliminate the current straps after Step 1 for the dust cover. Discard the existing straps and staples.
Fold past a webbing strap 1/2 inch and fasten it to the rear of the seat for the vertical straps around the back on a small chair. For bigger couches or chairs, start from the center first and work out into the sides. You might have to split the width of the strap by the width in the rear of the seat to compute the number of straps can fit on the seat. Leave around 3 inches between each strap.
Pull the initial secured strap forwards through the seat and above the side of the web stretcher. Hold the web stretcher under the strap with its span. Press the rubber side against the web, maneuvering the prong side toward the seat. As you pull back on the web stretcher, pulling the web taut, permit the prongs on the opposite end of the stretcher to experience the webbing strap. Apply force to this web stretcher on the side away from the seat to pull on the strap taut.
Secure the webbing in place by inserting staples through the webbing into the wood. Fold back the webbing onto itself and add more staples to hold it closely.
Cut the webbing off just past where you secured it with fundamentals about the fold-over. Repeat these steps throughout the rear of the seat to fasten a number of straps to the front, parallel to the current straps.
Cut the straps that run from side to side on the seat long enough to drape the webbing throughout the web stretcher.
Weave the side-to-side straps in a basket or plain weave, above and below the back-to-front straps. Secure the webbing straps after the directions in Step 3.
Repeat Steps 5, 6 and 7 to fasten the unwanted webbing straps in place.
Staple a piece of muslin or burlap with the staple gun into the seat to replace the dust cover cut if the seat had one. Make sure to cut the cloth to fit the seat and permit for securing it together with the wood borders of this frame. Set the cushion back onto the seat.