13/09/2025
This image provides two views of a lean-to roof structure, also known as a shed roof, commonly used to create a patio cover, carport, or extension attached to an existing building.
Technical Diagram
The top part of the image is a 3D diagram showing the basic frame with key dimensions.
Height: The structure has a sloping roof with a high end and a low end. The high end is 322 cm tall, and the low end is 210 cm tall.
Width: The width of the structure is 315.4 cm.
Length: The length is 500 cm.
Rafters: The diagram shows several evenly spaced rafters running from the high end to the low end.
Footprint: The base is marked with the dimensions L275 x C450 cm, which may be a mistake or an unconventional way of noting the length and width of the posts' footprint.
Real-World Example
The bottom photo shows a finished lean-to structure attached to a red barn.
Framing: The photo provides a realistic view of the framing. You can see the rafters and the horizontal purlins laid on top of them, which provide the surface for the roof covering.
Connections: The structure is attached to the barn with visible metal brackets, which ensure a secure and stable connection.
Posts: Large wooden posts support the outer edge of the roof.
Finished Roof: The roof is covered with what appears to be metal sheeting, and the underside of the rafters is exposed, giving it a rustic or utilitarian look.