Inquiry (采购产品): rolling channel for stair case i have customer who is intrested in a circular stair case wants to have channel rolled for stair.stair to be self supporting room size is app. 11 1/2 feet square and height from floor to second floor landing is app.13 feet give or take a couple of inches.could you recomend what size channel to be used? i had 10" channel figured for the this.it will be an inside raidus as well as an outside radius.the stair width will be app.40 inches wide including the stringers.could you advise app.what we would be looking at for ball park figure to have these channels rolled and shipped to my location.Thank You **** Hidden Message ***** Tom Ellis 38606 Company: Ellis Ornamental Iron E-mail: ellisiron@myway.com **** Hidden Message ***** ellisiron@myway.com