LittleBella,
Hope I explain this well.
2 x dowling rods - long enough to pass through the centre of plain wall paper with about an inch to spare each side.
1 x roll plain wall paper.
1 x long post tube
8 x plastic caps for tins (usually found in pet section of shops)
2 x strips of cloth (length depends on you)
2 x hook and rawplugs.
Sew a loop at either end of the cloth. You need to sew another loop near one of the ends. Do the same with the second piece of cloth, tryin to duplicate what you did with the first as close as possible. (I found marking them first helped.)
Mark a x in the centre of the four caps. Cut along the x with a sharp knife.
Pass one of the rods through the wall paper, then push a cap on each end so the wall paper stays in place. Do the same with the cardboard tube.
The rod with the paper on it put through the middle loops of the cloth, then put another cap on each end to keep in place.
Do the same with rod going through the tube. This time put them through the bottom loops.
The hooks need to be placed on a suitable wall at the right height and distance from each other.
You should now be able to lift the roll of paper and use the spare hoops to hook it up. Making sure when the paper unrolls it is against the wall.
Pull the paper down until it reaches the tube and sellotape in place. Turn the tube a couple of times.
Your child now has a large area they can happily draw on. When this is full/finished simply roll the bottom on to reveal fresh paper ready to decorate. Just make it clear this is the only place they are allowed to draw unless on paper.
Sorry I can't give dimensions but it has been a long time since I've done this. I think the distance we used between 'middle' and bottom loops was 4 or 5 foot. My daughter and her friends loved it.
You can also keep them when finished to embarras dc when older