Installing an adjustable door threshold
I'm getting ready to install an adjustable door threshold in a basement on a concrete slab. This is what the threshold looks like: Find Adjustable Sill Inswing, 36" and other Door Thresholds & Sweeps at Aubuchon Hardware
It's a standard threshold that you see a lot these days. However, I will be installing this into an existing doorway (removing the old threshold and installing this new one). I've looked all over the place for installation instructions but can't find any. Does anyone know how to install these both on a concrete slab and if it were a wooden sub floor? There doesn't seem to be any place on the threshold to screw down through the threshold into the floor below. Thanks for your help!