put the trannys together in pairs, so there are now 4 1½ trannys, and in the corner of the deck and the transition, cut a 1½ square
screw in 1¼ pieces of OSB to the bottom of each tranny structure before you start,(this is for the base and the walls
cut 1½ off 28 2x4s and screw them in like in this diagram
cut the leftover 2x4 1 bits that you got from the 7 frame work, and cut yourself 22 3 lengths.
screw these in 6 apart between the top 2 2x4s (see diagram) and make sure that the 2 side of the 2x4s are facing up(this is the support for the deck
cut the 8 ft coping down to 7ft
tape the coping in place with masking tape
use a 6.5mm metal drill bit, drill holes all the way through the coping (through both sides of the pipe) about 1-inch in on either end of the pipes, as well as in the middle of the pipes, so that both pieces of coping have three holes drilled all the way through them.
On both pieces of coping, pick one side to be the front or back. On the sides you choose to be the front, use your 13mm metal drill bit to enlarge all three holes being careful not to enlarge the holes on the back.
Take your long Phillips head screw driver bit and screw the coping into the 2x4s in the coping cradle notch.
The enlarged holes in the front should allow the screw and the driver bit to get inside the pipe, while the smaller hole on the back should catch the head of the screw and keep it fastened to the 2x4s. Repeat for both sides of the ramp.
remove the tape
screw in half of a lock by the edge of each of the tranny walls, in the middle of the transition
Figure 4 framework for the base
1. cut 1 2x4 in half(making it 4)
2. cut 19 off 2 2x4s(making them 77 long)
3. cut 3 2x4s into 6 44 pieces
4. use the 4 and the 77to make a rectangle, and screw the 6 44 pieces in about 1 apart. It should look something like this
5. screw in a OSB sheet to the bottom(this is to level it out with the walls
Figure 5 framework complete
Figure 6 plying the tranny
now we can ply the 2 halves and the flat bottom. Lay a piece of 4mm ply horizontally across the tranny, and make sure it is just below the coping. Screw this down
lay another sheet down horizontally and make sure that the top of this sheet is flush with the bottom of the first sheet
cut off the access which is sticking out
now lay 1 sheet of 4mm ply on vertically on the tranny structure, and screw it down
screw down another sheet next to it and cut off the access
do the same for the other tranny
screw down 2 pieces of 4mm ply on the flat bottom
use the access 4mm ply you have cut off from the plying the trannys to ply the decks
Figure 7screwing down the ply
Figure 8 hinge detail
1. measure the diameter of the round bit of your hinge(h)
2. measure the length of the flat bit (LFB)
3. 1 in from the edge of the tranny wall and the flat bit measure a box that is LFBxradius of h
4. now measure the width of the flat bit of the hinge(WFB), and make the box go down as long as the WFB is
5. chisel this box out
6. do the same for the other 3 corners of the tranny, and the other 3 corners of the flat bit and then screw in the hinges
7. test to see weather the hinges work
join the 2 doors you cut earlier together, and then fit them into place
do the same with the other doors
fold the ramp up, and on top of the structure, lay down 2 sheets of OSB.
draw around these with a pencil
on the outside of this line screw in some leftover 2x4s and make sure that there is at least one on each side where the pieces of OSB join