Solid wood core gives these Workbenches with Stainless Steel Tops extra strength for demanding jobs. Type 304 stainless steel tops are nearly impossible to corrode and withstand harsh environments better than all other types of stainless steel. Choose either 1-1/4" thick top with industrial strength particle board core topped by 16-ga. stainless steel with #4 finish and hard rubber T-mold edge and backer sheet; or 1-1/2" thick top with 1-7/16" thick MDF core topped by 16-ga. stainless steel with #3 finish and welded, polished smooth stainless steel edge and melamine backer sheet. Made in USA.