Measure the distance between the canoes front and rear thwarts. Use the stud finder to find ceiling joists about the same distance apart. Mark the joists.
Mark and predrill two pairs of holes in the ceiling above the points where the front and rear thwarts will hang for the ceiling hooks. The hook pairs should be slightly farther apart than the beam of the canoe at the thwarts. Screw the four hooks into the ceiling.
Assemble the rods by screwing a female threaded eye nut onto each end of each all-thread rod. Hang one end of each rod from a hook in the ceiling.
Screw pipe caps on both ends of the hardwood dowels. The cap threads will dig into the wooden dowel ends and hold the cap in place. Feed the dowels through the lower eyebolts of the forward and aft pairs of hanging rods.
Hang the canoe by removing the dowel, lifting the forward end above the eyebolts and reinserting the dowel. Lower the gunwales onto the dowel. The caps will keep the dowel from slipping out of the eyebolts.
Remove the dowel from the aft eyebolts. Lift the aft section of the canoe above the eyebolts and reinsert the dowel so the gunwales rest on top of it.