Make sure that you screw the board down very tightly as this will prevent it from sagging or sliding.
How to fix french door threshold.
The threshold will have to have notches on each side to fit around the door jambs.
Preparing the new threshold.
The new threshold arrived in good shape with all the hardware included.
Slide the threshold into the area you have just cleared of the old wood and screw in using the screws supplied with the threshold kit.
Mark the new threshold based on your measurements.
Use a carpenter s square to mark perfect right angles for these notches.
Adjust and perfect the cuts with a handsaw if necessary.
You ll spend a lot of time kneeling on the outside of the house.
Installing a french door threshold.
Caulk the bottom of the threshold until the entire surface is covered with caulk.
Thresholds come in wood and metal both of which come with a rubber gasket for sealing out the cold.
If your threshold is in rough shape replace it.
Once your wood is ready spread a thin layer of silicone adhesive along the bottom of the door area.
Place rubber mats on the porch as tom did or invest in a good pair of knee pads.
Cut the new threshold to fit using a jigsaw or circular saw.
If the threshold is rotted the sill probably is too.
Most exterior thresholds also have a sill beneath them.
Open your french doors and prop them fully open.
Remove all screws holding the threshold in place and set them aside for reuse.
Fit a wood cutting blade at least as long as the old threshold is deep into a reciprocating saw.
Carefully remove the threshold from.
Remove the storm door and any weatherstripping attached to the threshold.
How to fix a french door sill leak 1.
I had been unnecessarily worried about it after reading some of the amazon reviews.