The throw line (also known
as the oche, toe-line or hockey) should be about 3 feet wide. It may be made of
tape, a store bought throw-line sticker, a piece of wood or metal. It should be
placed exactly 7 foot 9 and 1/4 inches from the FACE of the board for a standard
steel-tipped setup. For soft-tipped darts, the line should be 8 feet from the
FACE of the board. (NOTE: Some British pubs use an 8 foot or 8 foot 6 inch
measurement for steel tip darts.) To measure from the face of the board, have
someone hold a plumb line from the bottom-front of the board to the floor. If
you don't have a plumb line, you can use a piece of string with a pencil or dart
tied to one end. Make sure the throw line is exactly perpendicular to the face
of the board and centered with the board. This can be accomplished by measuring
from the bullseye to each corner of the line.
If you have a carpeted area where you are going to setup your dartboard, you
can use a strip of wood or metal with the "hook" side of a piece of
Velco attatched to the back as your throw line. You can stick it to the carpet
when in use and it won't move, then just rip it up when your done.