This facility performs impact tests and was looking for a door large enough to bring the test equipment thru but strong enough to stop any debris from the test. The result was our NTH2700 model-top hung, single slide & manually operated. The panel was 23'-7 ¾ "wide by 7'-10" high. Due to its size the panel was assembled in the field using our easy through-bolt splice plate & channel at the head & sill.
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