These sketches of my bedroom show a pretty typical representation of the components of residential construction.
The bedroom floor joists are assumed to be 2x10 joists, with 1/2" plywood on top and carpet finish. The walls are assumed to be 2x4 stud walls @ 16" oc with 1/2" APA rated sheathing and vinyl siding on the exterior and drywall on the interior.
The door opening is supported by a (2)2x8 header with 1 layer of 1/2" plywood in between. The door frame and trim are very typical. Supporting the pre-engineered trusses above the window is a (2)2x8 header also with a layer of 1/2" plywood in between (the plywood is included to create a uniform wall width). The double-hung window has a typical aluminum frame.
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