The present invention provides a self-assembly safety door comprising: a doorpost coupled and fixed to both sides of a temporary doorframe formed on a distal end of a wall body; a door provided on the doorpost to horizontally rotate so as to be selectively opened/closed; a corner part provided on one end part of the door to be coupled to the door and hinge-coupled to the doorpost to rotate with the door at the same time; and a coupling part interposed between the door and the corner part to couple the door and the corner part.

A system, device, assembly and methods for a frame assembly, including a connector as shown and described. The assembly may be a door frame assembly and may, by way of example, be a doorjamb and/or a door mullion including a connector. A connector may provide stability to the assembly.

The fenestration structures include external frame segments facing the interior and exterior surfaces of a building wall, and an internal frame segment sandwiched between the external frame segments. The external frame segments are made from a relatively hard, dense and/or resilient material, such as hard wood, while the internal frame segment is made from paulownia which is a moisture-resistant, dimensionally stable thermal barrier material. The external frame segments therefore provide durable and attractive exterior and interior surfaces of the fenestration frame, while the internal paulownia segment provides superior resistance to thermal transfer across the frame, while also remaining dimensionally stable across a variety of moisture and temperature levels. Internal paulownia segments may be positioned around the entire periphery of the fenestration frame to create a comprehensive thermal barrier.

The fenestration structures include external frame segments facing the interior and exterior surfaces of a building wall, and an internal frame segment sandwiched between the external frame segments. The external frame segments are made from a relatively hard, dense and/or resilient material, such as hard wood, while the internal frame segment is made from paulownia which is a moisture-resistant, dimensionally stable thermal barrier material. The external frame segments therefore provide durable and attractive exterior and interior surfaces of the fenestration frame, while the internal paulownia segment provides superior resistance to thermal transfer across the frame, while also remaining dimensionally stable across a variety of moisture and temperature levels. Internal paulownia segments may be positioned around the entire periphery of the fenestration frame to create a comprehensive thermal barrier.

A trim product with integrated rigid foam insulation attached thereto. The foam insulation portion is trimmed flush to the back of the trim product. When installed, the insulation on the trim product forms a substantially continuous insulation envelope with similar foam insulation installed on the adjacent insulated panels of the construction. The trim product may be used to form the header, sill, or jambs for a window or a door or similar structure.