10/10/2025
This image is a technical drawing, labeled "LEFT FRAMING ELEVATION", that shows a cross-section of the structural framing for a small building or shed. It details the various components, their dimensions, and how they are assembled.
Detailed Breakdown of Components:
Foundation:
4 x 4 Treated timber skid: These are the ground-contact beams that form the foundation of the structure. They are made of pressure-treated lumber to resist rot.
2 x 6 Treated joists, 16" O.C.: The floor joists, which are laid perpendicular to the skids. They are also made of treated lumber and are spaced 16 inches on center ("O.C.") for strength.
Wall Framing:
3/4" Plywood: The subfloor, which is laid on top of the joists to provide a solid base for the walls.
2 x 4 Bottom plate: The horizontal framing member at the bottom of the wall, resting on the subfloor.
2 x 4 Studs, 16" O.C.: The vertical framing members of the wall, spaced 16 inches on center.
2 x 4 Top plate: The horizontal framing member at the top of the wall.
Double 2 x 4 top plate: A second top plate is added on top of the first, a common practice to create a stronger connection and to tie the walls together.
Roof Framing:
2 x 6 Ledger: A horizontal beam that supports one end of the rafters, located at the top of the taller wall.
2 x 6 Rafters, 16" O.C.: The sloping beams that form the roof structure. They are spaced 16 inches on center. The roof has a 6 in 12 pitch, meaning it rises 6 inches for every 12 inches of horizontal run.
Dimensions and Features:
The total height of the taller wall is 7'-9½".
The total height of the shorter wall is 6'-0".
All horizontal and vertical framing members are spaced 16" O.C. (on center), which is a standard spacing in residential construction.
The diagram is a left elevation, meaning it shows the view of the structure from the left side.