The frame is made out of 1/2 inch PVC pipe from the local home improvement store.
You will need the following pieces of pipe and fittings:
8 1/2 inch T Fittings 8 1/2 inch 90 Elbows 4 15 1/2 inch long pieces of 1/2 inch pipe 4 13 1/2 inch long pieces of 1/2 inch pipe 4 7 1/2 inch long pieces of 1/2 inch pipe 8 3 1/2 inch long pieces of 1/2 inch pipe
I added labels to the image to show which pieces go where. The fittings are obvious as are most of the pieces. The 15 1/2 is the vertical piece and the 13 1/2 is the horizontal piece.
I made the circumfrence of my frame at the top a bit smaller than the circumfrence of the opening of my laundry bag so that I could fold the top of the bag over the top of the frame to secure it.
I also made the frame a bit shorter than my laundry bag so that the bag actually sits on the ground and is not suspended from the frame. This keeps the bag opening on the frame. Were it suspended the bag would just pull from the frame and wind up on the ground. You may need to adjust the dimensions of your frame if your laundry bag is significantly larger or smaller than mine. When making your adjustments, remember to account for the length your fittings add.
The wide side of the frame has a large opening. When the laundry bag is full, I want to be able to pull it out of the frame. With the side supports up high and low, it leaves me alot of room to pull the bag right out of the frame.