Step 1: Digging the Hole

Using 4 x 4 posts, make a rectangle that’s eight feet long and 4 feet wide. Lay this in order that the long sides are just beyond the edges of the opening and one short side is simply beyond the side of the opening . Level this rectangle by shoveling away or adding dirt where needed. you would like to stay all the edges of this rectangle above ground level or water run into your hole when it rains and fill it up.
Step 2: Floor

Cut a bit of 3/4 inch pressure treated plywood 24 inches by 28 inches. Lay it in order that it makes the ground of the outhouse itself, starting at the cross piece and getting to the decking. confirm it doesn’t extend past the sting of the cross piece as this may create a ledge that would trap undesirable material. Cut strips of the 3/4 inch plywood and screw them to the highest of 4 x 4 base anywhere that’s not already covered by the plywood or the deck boards. this is often in order that once you build the walls, the bottom of the wall are going to be all an equivalent height.
Back fill dirt along the 4 x 8 rectangle in order that there are not any gaps where critters could get underneath your floor when the outhouse is completed .
Step 3: Walls and Seat

To make the seat, cut a bit of 3/4 inch plywood or other stock 18 x 48 inches. this may be the upright a part of the seat. Nail it onto the stud. you’ll need to notch out rock bottom plate. confirm that the within of this upright piece sits exactly even with the within of the two x 4 underneath it. As I said before, you do not want to make a ledge to catch undesirable material. Cut a bit of sheet 22 x 41 inches and nail it to the within of this upright plywood. this is often so when guys are sitting and happen to pee also, the pee doesn’t hit this upright piece of wood and soak in.
For the highest of the seat, put a support that’s one inch thick along the rear wall at 18 inches high to support the highest of the seat. It should not be thicker than one inch because you’ll need to drill holes within the top board for the rest room seat and you would like the space. Put supports on the side walls at 18 inches high also. Use plywood or other stock for the highest of the seat.
Now you’ll start the sheeting or boards for the surface of the outhouse. you’ll need something that’s immune to the weather otherwise you will need to paint it regularly or coat it with something. For the corners, run a bit of 1 x 3 board from rock bottom to the highest to hide up the unfinished edge.
Cut out a rectangle of about 14 inches by 10 inches on both side walls. Place a bit of nylon screen over the rectangle then use molding to carry the screen in situ . this is often for ventilation.
Step 4: Roof

Make the trusses within the usual fashion with the truss at the front and back of the outhouse lower so you’ll make a ladder for the front and back overhang. As this is often an outhouse, I didn’t bother with soffit and facia or eaves trough.
Block the spaces between the trusses at the highest of the wall with pieces of wood and caulking in order that it’s relatively closed off to insects.
I had some leftover metal roofing so I used that but shingles work well for the roof. With metal roofing, you do not need to put sheeting on the roof and it’s less susceptible to mildew than shingles.
Step 5: Door

Cut plywood or tongue and groove about three feet high by the width of the door opening (typically around 26 inches) minus a few half inch for clearance. Add bracing on the within along the highest and bottom and diagonally across the door. Attach the hinges.
Cut plywood or tongue and groove the remainder of the peak of the door for the highest portion. Typically, doors are 80 inches high. Make the highest portion an equivalent way because the bottom portion but add a bit at rock bottom that overlaps rock bottom portion.
Step 6: Vent Pipe and Toilet Seat

If you were to run the pipe directly through the roof, you’d need to cut away the highest plate so cut the pipe below the highest plate then use two elbows to detour the pipe round the plate. The pipe should find yourself around two feet beyond the height of the roof.
Toilet seats typically have two plastic bolts at the rear . Line up the rest room seat in order that it’s within the middle of the outhouse and therefore the two bolts will bypass the support you made for the rear underneath the wooden seat. Mark where the bolts are getting to go. Drill the holes and set the seat in situ . With the lid up and therefore the seat down, trace the within of the seat. Remove the rest room seat and cut a hole 1/2 inch bigger than the traced oval. Put the rest room seat back and put the nuts onto the plastic bolts and tighten them snug.
Step 7: Wash Station

Make another platform right beside the primary one but 10 inches higher. Buy an oblong pail, a faucet with a threaded pipe, two thin nuts that fit on the pipe and a few silicon. Cut a hole within the front wall of the pail near rock bottom . you cannot put it right at rock bottom because you would like some clearance for the within nut. Put the primary nut on the pipe thread as far because it will go. Put silicon on the within and out of doors of the opening and push the pipe in order that the nut is snug against the pail. Put the second nut on from the within and tighten it until the tap is firm.