Glass Size.
All pinball playfield glass is "tempered" glass. Do NOT use "plate" glass in a pinball game!

    * All the above games (except where noted below) use the standard glass size of 21" x 43" x 3/16". This size was used on most pinball games from the 1950's through WPC.
    * # - These games are "super-pins" with wide playfield bodies. These use 23 3/4" x 43" x 3/16" tempered playfield glass.
    * Safe Cracker, a smaller pinball, uses 18.5" x 36.5" x 3/16" tempered playfield glass.
    * Slug Fest, a WPC pitch and bat game, uses 23" x 35 1/4" x 3/16" tempered glass.

The size of the glass covering the translight on nearly all WPC games is 18 7/8" x 27" (Safe Cracker uses 18 7/8" x 19 1/2). The glass thickness is what most hardware stores call "double thick" glass, which is about 1/8" thick. Tempered glass can be used for the translight, but really it is not needed there (unlike playfield glass which must be tempered!) Note backglass assemblies changed with WPC-95, when Williams changed to the "light tub" to hold the backbox lighting. The translight channels are wider than previously used. WPC-95 translight lift channel part numbers are WLL-03-9420 for the bottom lift channel, WLL-03-9421-1 for the top channel, and WLL-03-9421-2 for the (2) side channels.