These tips will steer carport project in the right direction
Question: My son just turned 16 and bought a car. I want to build a carport on the side of the garage. It is not visible from the street, so its looks are not important. What is a simple carport design?
Answer: Carports are particularly easy to build because the sides are open. The building codes for unenclosed additions are usually less strict than for enclosed rooms. You might also have more flexibility about where you can put it on your lot. Check your local building codes and zoning before beginning any such project.
One of the simplest carport designs uses a slightly sloped ledger plate attached to the side of the garage, and vertical wooden posts along the other side. Once the basic structure is completed, the top can be covered with any roofing material. Corrugated PVC sheeting is an easy-to-use and durable material.
In most climates, run the roof corrugations parallel to the garage wall so that water runs off the end that slopes down. Install a gutter and downspout on that end so that the car does not get splashed as water runs off.
The basic construction method is similar to building a deck, except that the carport is higher off the ground. Attach a 2-by10-inch ledger plate to the side of the garage to support the roof. Use masonry bolts if you are attaching it to brick or blocks.
If the side of the garage has siding, cut away part of the siding so that the ledger rests against the sheathing. Bolt it to the wall studs.
Install vertical posts — probably three for the typical carport length — to support the other side. Dig holes and taper them wider at the bottom. Set the posts in the holes; fill them with concrete.
Leave a concrete “crown” on the top so that water doesn’t puddle around them. Follow local codes for sizing and spacing the roofing joists.
— courtesy of Creators.com