A tension-compression base structure includes tension elements (such as flexible cables or ropes) and compression elements (such as rigid legs) with a slidably adjustable path for the tension elements around or within the compression elements, thereby enabling a degree of adaptability to support surfaces that may not be ideally flat, such as on outdoor terrain. Such a tension-compression base may be used to support a platform that may be desirably held in a preferred orientation irrespective of terrain irregularities. Height adjustment of the platform can be achieved via a telescoping mechanism, a gas spring, or the like, at the one or both ends of the compression members of the structure. A spring or other compliant member inline with the “loop” tension member can be included. The spring also can remove the requirement for fine adjustments of tension elements during normal service. The spring can benefit various tension-compression base structures.

A multi-use convertible furniture piece, having a table top including a channel, the channel configured to receive a lid panel therethrough, a support frame connected to the table top, a door operably connected to the frame, the door including at least one receiving pocket, the lid panel configured to connect to the table the top and the door, and wherein the door is hinged to the support frame and a portion of the lid panel is received into the receiving pocket. The multi-use convertible furniture piece is also configured to receive and store the lid panel on at least one portion of the support frame.

A multi-use convertible furniture piece, having a table top including a channel, the channel configured to receive a lid panel therethrough, a support frame connected to the table top, a door operably connected to the frame, the door including at least one receiving pocket, the lid panel configured to connect to the table the top and the door, and wherein the door is hinged to the support frame and a portion of the lid panel is received into the receiving pocket. The multi-use convertible furniture piece is also configured to receive and store the lid panel on at least one portion of the support frame.

A picnic table includes a table panel, one or more bench panels and a supporting frame to support the table and bench panels. The supporting frame includes first and second supporting assemblies, each including a table support and one or more bench supports. The supporting frame further includes a table frame and one or more bench frames. The table frame rotatably connects the table support of each of the first and second supporting assemblies with the table panel. Each bench frame rotatably connects a bench support of each of the first and second supporting assemblies with a bench panel. The table support of each of the first and second supporting assemblies is adjustable in length. Adjusting the length of the table support changes the height of the table panel with respect to the one or more bench panels.

A picnic table includes a table panel, one or more bench panels and a supporting frame to support the table and bench panels. The supporting frame includes first and second supporting assemblies, each including a table support and one or more bench supports. The supporting frame further includes a table frame and one or more bench frames. The table frame rotatably connects the table support of each of the first and second supporting assemblies with the table panel. Each bench frame rotatably connects a bench support of each of the first and second supporting assemblies with a bench panel. The table support of each of the first and second supporting assemblies is adjustable in length. Adjusting the length of the table support changes the height of the table panel with respect to the one or more bench panels.

An umbrella pole adapter to convert boat dining table leg mounts into temporary umbrella stands is presented. The umbrella adapter is a tubular oval design shape member consisting of an upper end and a bottom end with a center opening running thru the length. The unique tubular oval design shape and the rubber material for the center opening, enables the umbrella anchor pole to be inserted and secured inside the adaptor without the need for any other parts. The same unique tubular oval design shape and rubber material for the exterior wall, enables the adapter to be inserted and secured inside the boat hollow dining table leg mount, without the need for any other parts.

An umbrella pole adapter to convert boat dining table leg mounts into temporary umbrella stands is presented. The umbrella adapter is a tubular oval design shape member consisting of an upper end and a bottom end with a center opening running thru the length. The unique tubular oval design shape and the rubber material for the center opening, enables the umbrella anchor pole to be inserted and secured inside the adaptor without the need for any other parts. The same unique tubular oval design shape and rubber material for the exterior wall, enables the adapter to be inserted and secured inside the boat hollow dining table leg mount, without the need for any other parts.

A beach umbrella anchoring and stabilizing device configured to stabilize a beach umbrella on a sandy surface includes an elongated support shaft, an anchoring container, and multiple gussets. The support shaft extends along a longitudinal axis between a proximal end and a distal end and includes a hollow interior configured to receive a beach umbrella support post. An anchoring container is coupled to the distal end and includes an open top with an upper perimeter edge substantially surrounding the support shaft, a closed bottom defining a substantially planar surface, and at least one sidewall extending therebetween. Multiple gussets extend radially between the support shaft and the sidewall. Each of the gussets extends from the closed bottom in a proximal direction parallel to the longitudinal axis.

A beach umbrella anchoring and stabilizing device configured to stabilize a beach umbrella on a sandy surface includes an elongated support shaft, an anchoring container, and multiple gussets. The support shaft extends along a longitudinal axis between a proximal end and a distal end and includes a hollow interior configured to receive a beach umbrella support post. An anchoring container is coupled to the distal end and includes an open top with an upper perimeter edge substantially surrounding the support shaft, a closed bottom defining a substantially planar surface, and at least one sidewall extending therebetween. Multiple gussets extend radially between the support shaft and the sidewall. Each of the gussets extends from the closed bottom in a proximal direction parallel to the longitudinal axis.

A five-device-in-one multi-function tea table, capable of functioning as a pet kennel, a storage locker, a table, a cooler, and an umbrella base, comprises: top and side and bottom frames attached to each other, solid and double-sized and pole-receiving panels respectively inserted into the top and side frames for the five-device-in-one multi-function tea table to function as a kennel or a grooming station or a pet-drying platform or a storage locker or a table or a cooler or an umbrella base, pole-receiving holes drilled into one of the panels, a pole-receiver-shaft attached to the top or side or bottom frame for attaching the five-device-in-one multi-function tea table to a fence post or to a tow hitch or to a pickup-truck utility hole, a waterproof bag having cord tunnels for securely holding rocks or sand or water to function as a ballast or as a cooler or as a cinch-sack or as a backpack, and a securing cord inserted into the cord tunnels for cinchably securing and protecting contents inside the waterproof bag when used as a cinch-sack and for wearably providing shoulder straps for the waterproof bag when used as a backpack.