Stairs With Routered Stringers

Routering out a hole in the stair stringer for the tread to insert into is a great way to build this type of stairway for the interior or exterior. The other way to build a set of stairs like this is to use brackets under the stair treads that attach to the stringer with lag bolts. The only problem with this is that the lag bolts over time could loosen up creating a stair tread that moves. This will become a safety hazard later.

With routering out the stringers you eliminate this problem. The routered out portion of the stringer will create a nice tight pocket for the tread to insert into. This will keep the stair tread from loosening up and wiggling as you walk up and down the stairway.

Routered Stringer With Treads