- Five 10' long, 3/4" Outer Diameter PVC pipes
- Tape measure
- Two or three large trash bags
- 2x4 wood plank between 3' and 4' in length (or similar) for the seat
- 3 rolls of Scotch Brand Tough Duct Tape (make sure it says waterproof on the label!)
- Lighter (optional: used for easier PVC bending)
- 3 square feet cardboard (optional : used to make paddle)
Step 1: The First Cut
Cut two 4" lengths of PVC from the same 2' pipe. Make a cut 2" deep into each of these pipes lengthwise, and bend the wings back until they create an angle approximately 60º with each other. These braces are essential to give the kayak its tapered shape. Note : hold lighter under the area of the pipe you wish to bend in order to soften the PVC first.
Step 2: Shape the Kayak
Take the whole 2' PVC pipe and the PVC pipe you cut the braces from and make similar cuts in both end of each pipe, approximately 2" deep. Bend the wings back perpendicular to the pipe so each end is "T" shaped. Press pipe against a flat surface to ensure all four wings are planar to each other.
Tape the longer cross-brace to the frame approximately 3' from one end (this will be the front), and tape the smaller cross-brace 2' from the opposite end (back). Note: because the kayak is curved, the angle of the wings will have to be adjusted slightly in order to align properly with the frame. You have just completed the top of your kayak!
Step 3: Finish the Frame
Cut two 10" segments of pipe from one of the 2' lengths. Create cross-braces similar to the ones created in the previous step. Tape these pieces between the top and the bottom of the kayak where the longer of the cross-braces is joined to the frame. Repeat this process at the other cross-brace using 8" lengths of PVC pipe cut from the remaning 2' PVC piece.
Add cross-braces to the bottom of the kayak by measuring the distance between the two cross-braces you just added. Cut these pieces from the remaining 10' length of PVC. Don't forget to add 4" to each length to account for the wings that you will be folding back!
Congrats, you have now completed the frame!
Step 4: Trash It
Step 5: Tape It
Note: Carefully check your work here before advancing. Make sure there are no holes or gaps in your tape, and that the layers of Duct Tape overlap fully. This is very important if you want to stay afloat!
Step 6: Accessorize
To create a paddle, take the remaining length of PVC pipe and cut it down to between 210 and 240 cm. Cut out the shape of your paddles from the cardboard and cover in Duct Tape. Tape paddles to PVC shaft. I made my paddles rectangles, but you can find other ideas and templates for paddle shape online.
That's it! Now don your life vest and get out there on the water!