Here is a simpler method. Think of a Gothic Arch as an A Frame building with curved rafters. Draw a line the length of the rafter on a floor or big enough work table and mark the center. Drive a nail at each end of the line. Place a batten against the nails and from the center push out the batten until you reach the desired curve. draw the curve on the inside of the batten and you have the inside of the arch. It is so simple any one can do it. Securely fasten blocks about two feet apart along the line and you have a building jig. The block spacing varies with the size of the arch. This method works for any arch from windows, doors to buildings. I have even used it to build boats. If you want a different curve, push the batten out at different points. It is fun to see how many shapes you can make.
I have the plans in the mail right now, from the boat builder. Thank you. I was trying to decipher these plans I found on the net. This makes it much eaiser!
Not criticizing, but there is an easier way to layout big curved shapes. It's called "lofting" as in boat building. For a roof, just use a long flexible "batten" like 1/4 x 1 inch wood. Bend it to the desired curve and hold it "edge on" to the floor with a few nails. Some nails on one side, some on the other. Draw a line on the floor and build a jig from there.
George Cyclist I saw your response to “build process of a 14X20 cabin”. I’m a novice, but I’d like to try my hand at this. Do you have a video showing your method? I agree that there must be an easier way. Thanks.
nice but that looks like it will accommodate an incredible snow load which cant be so important considering the poly cover will be several times the weaker link?
It is important to note that these plans were drawn when lumber was designated by actual dimensions 2x4s were 2 inches by 4 inches. Today lumber is designated by nominal dimensions, therefore the 2x4x6 blocks have to be made from larger lumber.
Ricardo it only becomes an issue when determining wall thickness in this application. Current uniformity of dimensional (nominal)lumber is set in order to simplify multiple aspects of construction. And before you reply understand that I have been a builder for 25 years.
