Measure the area of your carport and mark each of the four corners. This is where each of the posts will be fixed.
Cut two of your metal posts down to 7 foot with a hacksaw. This will provide a slant on the roof of your carport to prevent rain or snow from gathering on top of the carport.
Insert one of the four metal posts into the ground fixings and position in each corner, ensuring the two 7 foot posts are adjacent.
Attach the ground fixings to the ground, using bolts and a masonry drill where applicable to secure the carport to the ground. The carport can also be anchored by bolting to your home, or another garden structure.
Weld the corrugated sheeting across the top of the carport frame to create a sloping roof. Weld to each post to firmly secure the sheeting to the frame.