#796, Campbell's Profile Ties in HO: These are our profile HO tie for straight or curved track. An instruction sheet is included. They are made to the prototypical dimensions: 8" wide by 4" tall by 8 scale feet long for HO gauge. Instead of an 8" by 8" tie, we reduce the thickness (height) so you use less ballast. 1000 ties per bag and will cover approximately 20 feet of track. Go to our Making a Tie Jig for tips on laying these ties.