What materials are used in the construction of the NPS 6318B stool?

The NPS 6318B stool features a square, contoured hardboard seat and is constructed with strong 18 ga steel tubing.

What is the weight capacity of the NPS 6318B stool?

The NPS 6318B stool has been tested to support a static load capacity of 500 lbs.

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NPS 6318B 6300 Series Heavy-Duty Square Seat Stool with Backrest - Supports Up to 500 lb - 17.5" Seat Height - Brown Seat, Gray Back/Base

Features a square, contoured hardboard seat with 16 rivets.
Outer diameter made from strong 18 ga steel tubing.
Foot rings, 0.63" outer diameter are welded to each leg by four contact points for added rigidity.
Features backrest that adjusts up/down and forward/back.
Tested by Bureau Veritas to support 500 lbs static load capacity.