Wood Fire Door - UL 20 minutes ASICO DOOR is a door manufacturer specialized in commercial fire rated doors. With certificate of UL and BM TRADA, we have grown up as a mature fire door supplier. Asico provides a wide range of commercial&residential fire rated doors with thousands of possibility to choose from. Our fire rated doors are tested and listed in strict compliance with provisions of NFPA80, NFPA252, ASTM E2074, UBC 7-2-1997 and UL 10B&10C. ASICO UL 20 minutes Wood Fire Door Feature:**Available to meet Category A and Category B requirements**ASICO 20 minutes Fire Door is made with recycled/recovered fiber contentFSC certified particleboard cores, stave lumber cores, structural composite lumber (SCL) cores and wood veneers available**ASICO 20 minutes particleboard cores are made with rapidly renewable material recovered from agricultural production**ASICO 20 minutes door slab can assist in achieving multiple green building program credits, including Leadership in Energy and Environmental Design (LEED) and Collaborative for High Performance Schools (CHPS)**ASICO architectural wood doors are CARB compliantNo added urea formaldehyde components available upon request**Hose stream-approved available Maximum SizesSingles 4'0 x 10'0Pairs 8'0 x 10'0Thickness 1-3⁄4" minimumDesign: Over 80 standard door styles for 20 minutes fire door slabs.Fire Door Core Thick: 1 1/2" (38mm). Core: 20 minutes fire rating with Solid continuous particleboard core;Stile and Rail: 20 minutes fire rating with min 2" solid wood or LVL;Outlay: 1/8" (3mm) MDF or plywood;Finished: Primed, Stained veneered, Natural veneer, High Pressure Laminated Finished (HPL); Hardware Machining OptionsHinges Per NFPA80Locksets 1 ⁄2" minimum bolt throwCylindrical Lock 2-1 ⁄8" bore, 2-3 ⁄4" backsetMortise Lock UL Listed locksDead Bolt 2-1 ⁄8" bore, 2-3 ⁄4" backset (minimum 5" above latch cutout)Fire Exit Device Surface mounted vertical rod Rim-type surface mounted exit device Mortise type exit deviceClosing Device2 Surface mountedConcealed Viewer Listed viewersFlush Bolt Surface mounted manual Mortise manualAutomatic Auto Door Bottom Surface mountedMortised Kick Plate Top maximum 16" from door bottom ASICO Door offers wood fire-rated doors with for interior and exterior usage. The highest-rated commercial doors with UL standard is 90-minute wood door series and 180-minute steel door series. ASICO Door will be pleasured to produce both for your projects.