A stair case (10) having one or more stringers (12), treads (14), and risers (16), with the treads and/or risers being supported on the stringers. The stair case has first connecting elements, and each tread has at least one of the first connecting elements (18) provided at an under surface that tread. The stair case also has second connecting elements (20) that are each provided to a respective one of the risers. The first and second connecting elements are interconnected to secure each tread to one of the risers, and at least one of the first and second connecting elements is integrally formed in the respective treads and risers.

A stair system with freedom of movement between landings associated therewith includes a connection system configured to connect stairs to a landing associated with a construction, wherein the connection system structurally supports the stairs for safe egress over the stairs while concurrently supporting movement between the landing and a second landing associated with the construction by the stairs in at least one dimension, and wherein the movement supports inter-story drift between the landing and the second landing and removes some force translation between the landing and the second landing.

A stair transport device (1) having a planar top platform (2), two legs (3) connected to a front end (17) on each side (20) and a cross bar (4) with T-ends (23) connecting the two legs. Each leg has two sections (3a & 3b) slidably connected with apertures into which a pin can be inserted to adjust the height thereof. The back end (18) end of the top platform can be placed over a top stair of a plurality of stairs to provide a horizontal platform level with the guide wheels (10) of a gurney (8) for transport of medical patients and other items.

In one embodiment of the present disclosure, a handrail system for a ramp assembly, the handrail system includes first and second handrail posts oriented substantially perpendicular to a ground surface, a handrail portion having first and second ends extending between the first and second handrail posts, wherein the handrail portion is substantially parallel to a ramping surface ramping from a first elevation to a second elevation at a grade, and first and second interfaces at the first and second ends of the handrail portion for interfacing with the first and second handrail posts. In another embodiment of the present disclosure, an adaptor is configured for a handrail portion.

A system for providing a pet ladder, and more specifically, to a system for providing a dog ladder for use in of a body of water that may fold out of the water when not in use. is disclosed. The waterside dog ladder is typically attached to a pier, dock, seawall or similar waterside structure that abuts a body of water. The dog ladder has a platform and a plurality of ladder sections. The length of the multiple ladder sections when connected end to end permits the dog ladder to extend from the platform to the water bottom. The dog ladder folds into a retracted position to completely remove the multiple sections from the water when not in use. The ladder is a positive-stop ladder so that each section folds until it hits a stop and provides a firm and solid footing for the dog at a predefined angle that the dog can manage. The rigid and solid feel makes the dog confident and relaxed when exiting the water.

A platform interface includes a platform, a hanger, and a ramping section. The platform defines a slot. The hanger has a body with a first end and a second end, a flange outwardly extending from the body and having a flange lip, and a gap extending between the first end and the flange lip. The ramping section has a hook configured to engage the flange such that the platform supports the ramping section via the flange. The gap is sized to prevent rotation of the hanger relative to the platform when the first end of the hanger is engaged with the slot and the hook engages the flange.

A deck apparatus for assembly with a pair of opposing brace frames interconnected by a pair opposing connector bases and a deck board top frame having a plurality of deck boards disposed thereon, the connector bases having opposing posts for being received in openings in a lower end of the opposing brace frames ends and the deck board top frame having posts for being received in an upper end of the opposing brace frames, and optionally attaching a stairs riser having a plurality of spaced-apart treads or a ramp riser for extending from a deck surface at a height to a vertically lower support surface.

A stair stringer may include a body. The body may include a horizontal arm, a center angled portion coupled to the horizontal arm, and a vertical arm coupled to the center angled portion. The stair stringer may also include a first appendage coupled to a first edge of the horizontal arm, a second appendage coupled to a second edge of the horizontal arm, a third appendage coupled to a third edge of the vertical arm, and a fourth appendage coupled to a fourth edge of the vertical arm. The fourth edge may be adjacent the third edge. The first appendage, the second appendage, and the third appendage are parallel with respect to one another. A stairway system may include a first stair stringer and a second stair stringer. The second stair stringer may be an architectural chiral with respect to the first stair stringer.

A block-type modular ramp is to be provided in a place where a step or bump is formed. The block-type modular ramp includes block bodies arranged in a horizontal direction and stacked vertically to form a backbone, a fastening member for fastening the block bodies arranged in the horizontal direction to each other, a fixing pin for fixing the block bodies stacked vertically to each other, a fixing member coupled to the block bodies and fixing the block bodies to a floor surface where to install the ramp, fastening grooves formed in the block bodies, and fixing holes formed in the block bodies in an up-down direction.

The present embodiments provide an aviary, a walkway for an aviary, and a walkway system for an aviary. The walkway includes a ramp and at least one support disposed below the ramp.