Abstract: The various embodiments disclosed and pictured illustrate a baluster connection system for securing a baluster to a rail. The rail includes a channel formed therein, wherein the channel is defined by two opposing channel walls, a channel floor, and the interior surface of the rail top. Two opposing insert tabs may be affixed to each channel wall a predetermined distance from the rail top so that an insert may be placed between the insert tabs and the rail top. The insert includes apertures and baluster catches through which the second end of each baluster connector may pass in a first position of the insert. In a second position of the insert the baluster connector second end is secured within the channel.

Abstract: The slot rail assembly, in combination with a rail portion, at least one baluster, at least one baluster connector, and a lateral slot and at least one spacer is disclosed and claimed. The baluster may be slid distally along a lateral slot to accommodate the pitch or slope of incline or decline addressed. Lateral movement of the balusters within the lateral slot and change in relative angle of the baluster in relation to the rail portion allows the balusters to stay “plumb” no matter what the pitch of the stairs may be. At least one spacer may be snapped into place to fix the horizontal position of the balusters and to provide a seal against ingress of debris and moisture into the lateral slot. The slot rail assembly may be deployed as a stair rail, a stairway or an improved connection system for balusters and stair rails.