Yes, you can find ceiling joists using simple tools if a stud finder isn't available.

Using a hammer requires patience and a keen ear. Gently tap the ceiling in a grid pattern, listening for sound changes. A hollow sound indicates space between joists, while a solid, dull thud suggests a joist. Mark the location with a pencil and confirm by tapping from different angles.

Alternatively, you can use a nail, but this method will leave small holes. You'll feel increased resistance when the nail hits a joist. Mark the spot and repeat the process every 16 or 24 inches to map the joist locations. This method is considered less reliable than using a stud finder.

Converting a carport into a garage can vary in difficulty depending on its configuration, the condition of the foundation or slab, and its location relative to the house. The process has a lot in common with a home addition, but you can often skip non-essential finishes like fine flooring, trim work, or even drywall and HVAC. The conversion requires experience with drywall, insulation, and other building materials to ensure it’s done safely and correctly. While it might be possible for a DIYer with the proper tools and skills to do the work, it is a complicated and potentially dangerous job. If you’re new to basic construction, it's best to leave this project to the professionals.

The best way to calculate framing costs is by basing your costs on the square footage of your home. On average, framing your home could cost anywhere between $7 and $16 per square foot. 

To ensure you don’t go over budget, base your estimates on the higher end of the price range. If you know you’re going to use high-end materials or require a custom or complex build, you might even want to tack on an additional 5% of your budget.

Metal stud framing parts include the studs themselves, upper and lower tracks that act as top and bottom wall plates, various angle fasteners and clips, screws for fastening pieces togeher, metal straps, c-channel supports, and thicker steel supporting structures. Roof framing metal components include pre-fabricated trusses, heavy-gauge stud pieces, and various plates and fasteners.