Roll-formed double tube and channel 19gauge steel (all perforations in channel – no perforations in tube); full front "K" brace support; approximately 11" clearance between first cross-brace and floor; seat height from floor approximately 19"; rear legs have (2) steel embossed cross-braces for extra support/strength; on each chair leg (4) is a molded foot glide over an extra protective smooth "U" shaped metal pronged design hairpin for a secure friction fit and are removable only with the use of tools. (channel bumper optional)
Minimum 25 year limited metal frame warranty.
Seat Construction: Seat frame folds independently of chair frame and rotates from the open position to the up position during use; 11 gauge steel frame; vertical leg approx. .875"W and horizontal leg approx. .625"W forms a rectangular frame measuring approximately 18.25"W x 15.5"L; heavy duty supported vinyl sewn seat; polyurethane foam seat cushion 2.5" to 3" thick; cushion conforms to ASTM D3574, California 117 and BIFMA fire retardant requirements; over 1/2" thick la minate/wood black chalkboard base with enough vent holes to allow for air discharge; seat frame and seat assembly will be attached directly by using vandal proof plated recessed hex head screws. (contour foam upholstered seat optional)
1" thick pure polyurethane foam; heavy duty supported vinyl; .125" shaped plywood backboard with threaded metal insert/fasteners; upholstered backrest is approximately 18.5"W x 12"H; attached with vandal-proof plated recessed hex head screws.
Heavy duty die formed 11 gauge steel brackets; designed for fast alignment; set-up/take down, binding prevention, and minimum chair movement. Chairs do not release when tipped back. Chairs are approximately 19.5" center to center.
Metal Frame Finish
Powder coat finish of not less than a thickness of 2.5mm.
Frame/Upholstery - As per customer selections.
As required on chair backrest, top of seat cushion, and/or front edge.