description 8 ft. to 13 ft. aluminum extension plank rest the werner® 8-foot to 13-foot aluminum extension plank between 2 ladders or on ladder jacks to have a staging platform that can hold up to 275 pounds. the werner extension plank is made of extruded aluminum bars 2 inches deep, with a platform consisting of extruded aluminum cross members riveted to the bars. the 5-foot extension can be locked in at 12-inch increments, and it opens and closes smoothly on molded plastic spacer guides. positive stops keep the werner aluminum extension plank from moving beyond its full extension of 13 feet. the end flanges are made of heavy-duty aluminum crossbars that are also riveted into place to give the planking additional rigidity. the flanges on the aluminum extension plank are open so that the cross bars can be secured with channel clamps on werner ladder jacks. the extension plank is 14 inches wide and is weight-rated for 50 pounds per square foot. california proposition 65 warning. features plank expands from 8-ft to 13-ft for use on stepladders, telescoping multi-ladders, extension trestle ladders and extension and single ladders equipped with ladder jacks made of 2-in deep box section extrusions extruded cross member riveted with solid aluminum rivets positive stops prevent over-extending molded thermo-plastic spacer guides for easy open/close action outer flange open for ladder jack clamps locking mechanism sets the plank in 12-in increments specifications acme tools brand name werner acme tools part number pa208 ansi approved yes ansi ladder rating not rated assembled weight (lbs) 40.5 base spread (in) 0.0 base width (in) 14.0 california proposition 65 warning required no country of origin china csa certified no duty rating (lbs) 50.0 globaltradeitemnumber (gtin) 00051751016499 interchangeable parts no internal supplier part # pa208 internet product code (ipc) e3cdb8925f9 ladder length (ft) 8.0 ladder material aluminum ladder type scaffold manufacturer warranty na material no maximum load (lbs) 250.0 meets ansi or osha standards yes osha approved yes package depth 96 package height 2.5 package weight 40.5 package weight (lbs) 40.5 rail material no scaffolding type planks self locking no upc 051751016499 weather resistance no weather resistant no