Bifold doors are built in sections that fold out. Typical bifold doors are hollow. They have a small frame around the perimeter, with two pieces of thin plywood on both sides. This makes them lightweight and easy to handle. This design can fail if the door has been abused or has been in use for a long time when the roller at the top begins to come loose. When you try to use the door, the roller may tilt or turn sideways and bind. Before you can stop pushing, the wood breaks around the roller and the door fails completely. You can replace the wood with a new piece in about an hour. Grab the door with both hands and lift it up and out of the track at the top. If the rollers are tipped or sideways, you may need to jiggle the door to get them to come out of the track. Lift the door up with your fingers, it it has a pin at the bottom. If it won't lift up, tilt or swing the door to one side and the pin should release from the track. Place the door flat across two sawhorses. Measure the location of the roller where it is inserted into the door and write it down.
Use a pair of pliers and a screwdriver to pry and pull the rollers from the top of the door if they don't fall out. If the roller is screwed into the door, unscrew it from the wood if you need to. Place a chisel on either side of the damaged area between the two plywood faces where there is good wood without any chips or splits. The chisel should be perpendicular to the grain of the wood. Drive the chisel into the wood by tapping the back of it with a hammer. Cut across the frame evenly so that it's flat and leaves no remaining splinters or chips. Cut out the frame of the door on all four sides of the damaged area, leaving the plywood intact. You should have a rectangular opening in the door frame where the roller was attached. File out the sides of the rectangle if needed with a small file to get them even and straight. Measure between the plywood pieces. Set the fence on the table saw and rip a piece of fir strip to the measurement. Measure the length of the rectangular area. Cut the piece of fir to length using the miter gauge on the table saw.
Spread glue liberally into the rectangular cutout with a glue bottle. Spread glue onto the block. Place the block in place in the cutout and tap it in with a hammer. Place a hand clamp on the door and tighten it until glue oozes out all the cracks. Let the glue dry for a minimum of one hour. Measure the diameter of the roller where it is inserted into the door. Select a drill bit that is 1/16 inch less than the diameter of the pin on the roller and install it into a cordless drill. Using previous measurements, drill a hole down into the new block. Screw the roller into the hole until it's flush. Tap the roller into the door with a hammer if it's a pound-in type. Hang the door just as you removed it. Place the pin at the bottom in place in the bottom track if there is one. Things You Will Need Sawhorses Pliers Screwdriver Chisel Table saw with miter gauge Fir scrap wood, 1 1/2 by 3 1/2 by 24 inches File (optional) Glue bottle Tip Warning Photo Credits Goodshoot/Goodshoot/Getty Images Suggest a Correction
do you ship to the UK Thank you for your recent inquiry regarding this item from Prime-Line Products. Unfortunately special orders are not currently being shipped to the UK, but feel free to contact Prime-Line Products directly to inquire if there are any other options available that would assist you with your hardware replacement project. For questions regarding this item, or any other product manufactured by Prime-Line Products, please call their toll free number at (877) 649-9740, or contact them by email at info@primeline.net My trifold doors use to fit but i layed down some tile and now they dont fit by any chance do u all sale any railing that not as thick ad d original Hello Joe, and thank you for your inquiry regarding this item from Prime-Line Products. The only track we have for this type of hardware is the track found in our kits; model numbers N-6958 (36-inch length), N-6959 (48-inch length) and N-6960 (60-inch length), all which can be special ordered at your local Home Depot.
This track measures 1-1/16 inches wide by 1/2-inch tall. For additional questions regarding this item, or any other product manufactured by Prime-Line Products, please call their toll free number at (877) 649-9740, or contact them by email at info@primeline.net does the kit contain two of each item -- since both of my bi-fold doors are missing bottom piece that keeps the door on track Mine just had one bottom piece. How do you remove the old pivot type screw from the top of a bifold door? We tried unscrewing a...Our goal is to make your shopping experience as easy as possible, but sometimes there are products like this one that requires additional information in regards to the specifics of your existing and/or desired hardware. Please feel free to contact Prime-Line Products directly where a Product Specialist there can better assist you with your inquiry. You may also send photos in for us to visualize precisely what you are inquiring about. For additional questions regarding this item, or any other product manufactured by Prime-Line Products, kindly call their toll free number at (877) 649-9740, or contact them by email at prodtech@primeline.net
Does this kit contain everything needed except the doors? Thank you for your inquiry regarding this item from Prime-Line Products. This item includes everything but the doors and track. Prime-Line does have various kits that do include the tracks; kits with 60 inch track, 48 inch, 36 inch, 30 inch and 24 inch Do you have a repair for the bottom of the door where the 3/8" stud is mounted? The wood part has... Keith - I have same issue on bottom wood - did you find a fix ?Series 730 bi-fold door incorporates ThermalHEART™ technology giving a true wide thermal break between the outside and inside faces. WERS (Window Energy Rating System) data shows that using the same IGU in a ThermalHEART™ Bi-fold door is 32% more efficient than a standard non-thermally broken Bi-fold door. A major advantage with ThermalHEART™ bi-fold doors in cold climates is the reduction in internal condensation. This saves potential damage to timber reveals and paint finishes. ThermalHEART™ is also suitable for hot climates.