Adjustable pitch spiral stairway kit

An adjustable railing assembly, comprising:

• (a) a first railing defining a longitudinal channel;
• (b) a plurality of pickets, each having an end portion;
• (c) a plurality of elongate inserts, each insert having a length equal to a predetermined distance between pickets, the end portion of each picket being engageable with a corresponding insert, the picket end portions and engaged inserts being receivable within the first railing channel with the inserts arranged end to end to locate the end portions of the pickets at the predetermined distance;
• and
• (d) means for securing the inserts and engaged picket ends within the first railing channel.

A spiral stair kit including:

• (a) a plurality of steps, each step having an inner end and a peripheral end;
• (b) an upper railing and a lower railing, each defining a continuous longitudinal channel;
• (c) a plurality of pickets each having a first end portion and a second end portion;
• (d) a plurality of elongated inserts, each having a length equal to a predetermined spacing between pickets, the first and second end portions each picket being engageable with an insert, the first and second end portions and their respective inserts being receivable within the upper and lower railing channels with the inserts arranged in a longitudinal array to locate the end portions of the pickets at the predetermined spacing;
• (e) means for securing the inserts and engaged picket end portions within the corresponding railing channels;
• and
• (f) a center support pole, wherein the inner end of each step is securable to the center support pole and the peripheral end of each step is securable to one or both of the plurality of pickets and lower railing.

An adjustable railing assembly, comprising:

• (a) a railing defining a longitudinal channel;
• (b) a plurality of pickets, each having an end portion;
• (c) at least one insert for engaging at least one picket end portion, each insert having a length equal to a predetermined spacing between pickets, the channel including an opening of sufficient width to permit radial insertion of the insert with engaged picket end therein;
• and
• (d) means for securing the inserts and engaged picket ends within the railing channel at a selected angular orientation.