Rackable fence system

1. A fence system, comprising:

a first rail comprising:

a first surface extending generally parallel to a longitudinal axis of the first rail and having one or more apertures; and

a second surface and a third surface each extending generally parallel to the longitudinal axis of the first rail and opposing one another such that the first, second, and third surfaces of the first rail form a channel, the second surface of the first rail having a first lip and the third surface of the first rail having a second lip, the first lip and the second lip extending into the channel formed by the first, second, and third surfaces of the first rail; and

one or more pickets each inserted through a corresponding one of the one or more apertures of the first surface of the first rail, each of the one or more pickets having a first connection region located substantially in the channel formed by the first, second, and third surfaces of the first rail, at least a portion of each of first and second opposing surfaces of each picket being deformed toward each other such that at least a portion of the first connection region is narrower, along a first axis extending generally parallel to the longitudinal axis of the first rail, than an adjacent portion of the picket and is wider, along a second axis substantially perpendicular to the longitudinal axis, than the adjacent portion of the picket, the at least a portion of the first connection region being adapted to substantially prevent the first connection region from passing through the corresponding aperture in the first surface of the first rail or between the opening defined by the first and second lips of the first rail.

2. The system of claim 1 , further comprising a second rail, the second rail comprising:

a first surface extending generally parallel to a longitudinal axis of the second rail and having one or more apertures; and

a second surface and a third surface each extending generally parallel to the longitudinal axis of the second rail and opposing one another such that the first, second, and third surfaces of the second rail form a channel, the second surface of the second rail having a first lip and the third surface of the second rail having a second lip, the first lip and the second lip extending into the channel formed by the first, second, and third surface of the second rail;

the one or more pickets each inserted through a corresponding one of the one or more apertures of the first surface of the first rail being inserted through a corresponding one of the one or more apertures of the first surface of the second rail, each of the one or more pickets having a second deformed connection region located substantially in the channel formed by the first, second, and third surfaces of the second rail such that the second connection region is substantially prevented from passing through the corresponding aperture in the first surface of the second rail or between the opening defined by the first and second lips of the second rail.

3. The system of claim 2 , comprising at least two pickets, the first rail being substantially parallel to the second rail and the first and second rails being adapted to remain substantially parallel to one another while being translated with respect to one another.

4. The system of claim 2 , comprising:

at least two pickets;

a first post; and

a second post;

the first and second rails being connected to the first and second posts such that the first and second rails span the distance between the first and second post, the at least two pickets being substantially parallel to the first and second posts.

5. The system of claim 1 , wherein:

the first rail comprises a plastic material; and

the channel formed by the first, second, and third surfaces of the first rail comprises a reinforcing fillet at one or more of the intersection of the first surface with the second surface, the intersection of the first surface with the third surface, the intersection of the second surface with the first lip, and the intersection of the third surface with the second lip.

6. The system of claim 1 , the first surface, the second surface, the third surface, the first lip, and the second lip each being distinct and substantially flat surfaces.

7. A fence system, comprising:

a first rail comprising:

a surface extending generally parallel to a longitudinal axis of the first rail and having one or more apertures; and

a first rail side wall and a second rail side wall each extending generally parallel to the longitudinal axis of the first rail and opposing one another such that the surface, first rail side wall, and second rail side wall of the first rail form a channel, the first rail side wall of the first rail having a first lip and the second rail side wall of the first rail having a second lip, the first lip and the second lip extending into the channel formed by the surface, first rail side wall, and second rail side wall; and

one or more pickets each inserted through a corresponding one of the one or more apertures of the surface of the first rail, each of the one or more pickets having a first connection region located substantially in the channel formed by the surface, first rail side wall, and second rail side wall of the first rail, at least a portion of each of first and second opposing surfaces of each picket being deformed toward each other such that at least a portion of the first connection region is narrower, along a first axis extending generally parallel to the longitudinal axis of the first rail, than an adjacent portion of the picket and is wider, along a second axis substantially perpendicular to the longitudinal axis, than the adjacent portion of the picket, the at least a portion of the first connection region being adapted to substantially prevent the first connection region from passing through the corresponding aperture in the surface of the first rail or between the opening defined by the first and second lips of the first rail.