FTB-4 – Test Ball


4″ Universal Fabrication Test Ball for Guards, Railings, Fences, Barriers, etc…

Price is Per Ball


Model FTB-4 Universal Fabrication Test Ball: This universal plastic 4 inch / 100mm fabrication test ball can be used for quick visual inspections between infill and balusters for railings, guards, stairs, barriers and or fencing for fabricators or inspectors.  The ball has a tolerance of +/- 0.0630″ approximately and Use of this ball allows the fabricator to build the guard, railing, barrier or fencing and hold to under the 4″ spacing requirements.  Close tolerances should be verified with a tape measure, calipers or other more precise measuring device. (Color Varies)

Price is Per Ball

Additional information

Dimensions 4 × 4 × 4 in