The Tool Barn

Installing a Door Threshold to Bridge a Large Gap

Thresholds are common fixes for areas where the floor is at different levels.  This commonly occurs when putting a new floor covering over an existing floor.  Tile floors are a common culprit due to the use of cement board and other substrates.  The first task is to identify what kind of threshold you need.  In the pictured installation there was a little bit of plywood protruding from under the tile.  We chose an oak threshold that fit over the plywood edge but was still wide enough to fill the doorway.  Your project may not have all of these factors but we chose a complicated installation to illustrate the possibilities.

For this project you will need a drill, spade and twist bits, sandpaper (power sander is handy), hand saw, screws, wood glue and dowels to fill the holes (countersinks) you drill.

Door threshold

Door threshold

Level of Difficulty

Time Required:
 2 hours
Electric drill
Spade bit
Screw driver
Back or handsaw
Tape measure or folding rule
Wooden door threshold
Wood stain and finish
Wood dowels
Wood screws
Safety Precautions
Use safety precautions with power tools - eye and ear protection.

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