Hello ronc2 and welcome to the community.
How to install laminate flooring door threshold.
During the flooring installation laying laminate in a doorway perfectly is not so difficult when you start laying the floor boards at the wall that has the door in it.
Once you trim the door jamb to the proper clearance you ll want to measure and mark the piece or pieces of laminate going through the threshold.
Use adhesive to secure the threshold.
Install your laminate flooring up to the exterior threshold maintaining the expansion gap required by the manufacturer.
But when the last few floorboards of your laminate floor need to be laid under the door jambs or through the door lining or door frame it seems impossible to get them in without.
To install a tile marble or solid surface threshold or to install any material threshold onto tile or masonry floors.
Every hardwood floor installer is installing laminate woo.
Nail the threshold to the floor with flooring nails.
If your flooring runs parallel with the door you ll likely have only one piece of laminate to trim.
Here are some tips on installing laminate wood flooring if you need to do it close to a patio door.
Make use of various t molds that are available for your laminate here.