I came across this same idea which someone used a cut down apple picking ladder .
So i decided to make one for our laundry room.
Step 1: Rack Dimension Illistration
Step 2: Building the Rack
1st- I bought a 1x8x8 pine board.I I then cut it to 4 foot long.
2nd- I then ripped 2 boards 3 1/2 inches wide by 4 foot long on the table saw.
3rd- I put the 2 boards together and marked out 3 inches on center of the board for the 1st and 6th dowel on each end .Then 7 inches on center for the remaining 4 dowels.
4th- I then used a 1/2 inch drill and drilled all 6 holes.
5th- Next i cut 6 1/2 inch dowels 18 inch long and glued the ends and fitted them in the holes.
Step 3: Edges
1st- I used a router and a 45 degree router bit to chamfer all the edges.
2nd- Sand smooth the entire rack and put a coat of paint on it.
Step 4: Accessories
(4) screw eyes
(4) pieces of # 6 chain 5 inches long
(4) 3/16 x2 inch toggle bolts.
Step 5: Screw Eyes
I measured in on all 4 sides 2 inches . Then screwed in the 4 screw eyes.
Step 6: Toggle Bolts
Ist - I first measured out from the wall 5 inches from each corner.The 18 inches out from there .
2nd- I drilled ( 4) 1/2 holes for the toggles bolts
3rd- I then cut (4) 5 inch long pieces of chain and installed the toggles bolts in the holes and tightened them up.
4th- Hook the chain to the screw eyes and your finished and ready to hang clothes up to dry..