A sleeve for forming a channel through a concrete slab is described herein. The sleeve includes a sleeve body with top and bottom ends extending along a longitudinal axis, wherein the top end is wider than the bottom end. The sleeve includes an attachment flange attached to the bottom end that extends laterally outward with respect to the longitudinal axis. The attachment flange may be secured to a concrete form. An alternative sleeve has an attachment mechanism protruding from the first end of the sleeve body for facilitating the attachment of the sleeve body to a concrete form. In some embodiments, the sleeve can also include a removal mechanism disposed at the second end of the sleeve body to facilitate removal of the sleeve body from the concrete slab. Various sleeve configurations are described, some of which are reusable and some of which are one-time use only.

A rough-in box kit (100) for creating a rough-in box (200) to create a penetration in poured concrete flooring during the construction of concrete buildings. The rough-in box kit (100) includes a single unitary piece (1) having a flat section (5) with: a top end; a bottom end opposite to the top end; an inside surface (5a) located between the top end and the bottom end, and configured to form an inside surface of the rough in box (200); and an outside surface (5b) opposite to the inside surface (5a), and configured to form an outside surface of the rough in box (200). The single unitary piece (1) also has a top flange (3) connected to and extending away from the top end of the flat section (5), and perforations, through-holes, or slots (2) that are formed in the flat section (5). The single unitary piece (1) is configured to be bent at locations corresponding to and lining up with the perforations, through-holes, or slots (2) so as to form the rough-in box (200).

A core form device including a circular plate and a plurality of bendable arms extending from the circular plate which when bent about the circular plate form the core form device.

A method includes coupling a platform to a sheet metal having alternating peaks and Valleys. The platform includes a block-out component configured to conform to a valley of the sheet metal. The method further includes coupling a lead-sleeve to a mounting region of the platform. The method further includes pouring concrete around the platform and lead-sleeve, where the block-out component blocks a flow of the concrete from below the platform. The method also includes inserting a cutting tool through the lead-sleeve to remove one or more portions of the sheet metal to form a through-penetration.

A fire-protection element can be formed to accommodate a line penetration. The fire-protection element includes a substantially cylindrical housing, which has an inner side that defines a duct for at least one line and/or one pipe, where an intumescent material is sprayed directly onto at least portions of the inner side of the housing.

An assembly for realising a lamp incorporated into a masonry wall, comprises a lamp housing that delimits a lamp seat suitable to house a lamp body, and a mould suitable to be removably fixed to the lamp housing and to the inner side of a formwork in which the pouring is carried out, so as to realise, after pouring cement in the formwork, a light-emission cavity open on the outer surface of the masonry wall. The mould is suitable to rigidly support the lamp housing before and during the pouring of the cement and is provided with mould fastening means suitable to removably fix the mould to the inner side of the formwork.

A Hole Cover for penetrations in commercial construction floors. One size of hole cover can accommodate a wide variety of hole diameters, and fit snugly. The device is made from a lightweight, yet durable material. A version having a cap with an internal metal core is also available.

An apparatus and method for creating openings in a material that solidifies is disclosed. The apparatus comprises a rigid board and at least one rigid retainer plate. The rigid retainer plate comprises at least one buoyancy plate to resist the buoyant force of the material that solidifies, at least one hydrostatic plate to resist the hydrostatic force of the material that solidifies, and a retainer tie. The rigid board further comprises retainer plate slots configured to accept the retainer plates. When the apparatus is in use, the retainer plates are inserted into the retainer plate slots and the retainer ties are coupled to formwork panels. The material that solidifies is then poured into the gap between the formwork panels. Once the material is solidified, the formwork panels are removed and the apparatus can be either reused or thrown out. The apparatus may be used with any material that solidifies.

A sleeve assembly for poured concrete decks has a tubular sleeve connected to a base flange by stiffeners or an optional base wall. An intumescent ring and fire ring plate are fastened to the base flange. The stiffeners and optional base wall are configured so concrete passes between the stiffeners to entrain a fire ring plate and ring of intumescent material in the concrete by passing through a gap between the base wall and the sleeve or through open windows in the base wall to entrain the base wall when it is present.

A reusable form for creating conduit paths in concrete slabs is described. The form comprises a flexible tube that is positioned prior to pouring a concrete slab. The form includes a keep to keep material out of the hole formed by the form. The form also includes a key structure to permit easy removal of the form once the concrete is set. The system further includes a sighting device to permit rapid and precise alignment for placement of a form when forming conduits in a multi-level building. An accessory is also provided permitting filling in the opening created by the form once wiring, piping and other objects have been installed within the conduit.