The total cost was about $300. The price can vary if you decide to use more expensive materials. (Ex: thicker plywood)
Here are the materials used: (Note: an apostrophe (') denotes "foot" and quotation marks (") denote inches
4' X 8' Plywood Any thickness - 6
2" X 4" X 8' Lumber - 17 (This includes extras in case you mess up)
2" X 4" X 10' Lumber - 2
1 ¼ (1.25)" Exterior Screws - 2lbs
2 ½ (2.5)" Exterior Screws - 2lbs
3" X 6" Mending Plates - 40
2" X 4" Mending Plates - 6
Clear Silicone Caulk - 3 Tubes
Fiber Glass Sheeting and Resin - min. 150 sq. feet
You will also need:
Drill bits for the screw head you decide
Drill bit (about 1/8")
Jig Saw (for angle cuts on bow)
Step 1: Organize and Make Cuts
A - 4' B - 3' 5" C - 4' 2 ¼ (2.25)" D - 17 5/8 (17.625)" E - 1' 6" (1.5')
Note: Use the 2" X 4" X 8' lumber for the A, B, and D pieces and the 2" X 4" X 10' for the C and E pieces
You will need 10 A pieces, 11 B pieces, 3 C pieces, 16 D pieces, and 3 E pieces
Measure from the top of all E pieces a 25° angle. 3¾ inches in from the side of the E piece, draw another angle at 70°. These pieces will make p the top part of the bow. Attached is a picture. Erase the lines not shown in the picture and use the jigsaw to cut along the remaining lines.
On all three C pieces, draw a 45° angle from the top. Then on the other end, draw a 20° angle from the top to form a trapezoid. On one C piece, draw a 70° angle from the top 3¾" from the end where you drew the 20° angle. (Refer to picture.) Erase lines not seen in picture and cut with jigsaw along the remaining lines.
Step 2: Begin Assembling the Frame
Step 3: Complete the Frame
Step 4: Begin to Assemble Exterior
1 - Leave 4' X 8' (1)
2 - Cut at an angle so the top is 8' and the bottom is 6½'. (Do this by measuring lengthwise on both sides and drawing a line between the two marks. (2)
3 - Cut 1½' off of one end to make the whole 6½' X 4' (1)
4 - Cut 3' 2¼" off of one end (1)
5 - Cut 4' off of one end (Cut directly in half) (1)
Piece 1 is the top, 2's are the sides, 3 is the bottom, 4 is the front, and 5 is the back.
Step 5: Assemble the Exterior
Place the No.1 piece on the top and screw it into all parts of the frame. Then place the sides on the boat and attach in the same fashion. Once finished with the sides, move to the back. Once finished with the back, flip the boat on its side ad attach the bottom and front.
follow the instructions for use on the fiberglass and apply to the bottom and sides. The top is optional, but if you want to have anything wet (like swimsuits) on the top, I recommend using the fiberglass on the top as well. be sure to cover all edges with the fiberglass thoroughly.
Use the extra plywood to put a floor over the lumber frame on the inside and you have completed your mini cabin boat!