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HOME |A BOUT |PR ODUCTS |CONTA CT ATTIC STAIRWAYS | DOORS & BI-FOLDS | MIRROR DOORS | POCKET DOOR FRAMES | ENERGY SAVING PRODUCTS STA I R W A Y TY P E W O O DEN | ALUMINUM | THE ENER GY SAVER | THE R -5 ENER GY SAVER | THE R -10 ENER GY SAVER | W OODEN ATTI C STAI RW AY S THE MO D ELS: -300 lb duty rating -350 lb duty rating (Superior Plus) -1x5 Frame and Stringer -1x6 Tread -Two Strong Metal Handrails -250 lb duty rating -1x4 Frame and Stringer -1x4 Tread -One Strong Metal Handrail F EA TUR ES: Easily adjustable spring tension Full-width continuous hinge 1x4 frame between side rails and door panels Treads dadoed and nailed into side rails High grade, kiln-dried, yellow pine lumber Galvanized steel hardware with safety edge Steel rod under treads Safety grooved treads Strong steel handrails securely bolted (no splitting or splintering) C lear plywood panel O P TI O NS A V A I LA B LE: ENERGY SA VER, R-5 ENERGY SA VER & R-10 ENERGY SA VER Wide tread (1x5) for extra footing on ATLAS (1x6 is standard on SUPERIOR) Insulated door panel Pull-down rod with eye hook (shown in inset image) FSC certified plywood C ARB certified plywood D-Blaze Fire retardant treated plywood (for more information, see below product image, or click here) SP ECI F I CA TI O NS: R ough O pe ning Ce iling Landing P roje ct ion Mode l He ight (1) (2) # A-75 22½" x 48" 8'2" 54" 65" A-80 22½" x 54" 8'9" 58" 67" A-81 22½" x 54" 10'0" 66" 77" A-90 25½" x 48" 8'2" 54" 65" A-100 25½" x 54" 8'9" 58" 67" A-101 25½" x 54" 10'0" 66" 77" A-102 25½" x 60" 8'9" 58" 69" S-80 22½" x 54" 8'9" 59" 69" S-81 22½" x 54" 10'0" 67" 79" S-100 S-101 25½" x 54" 25½" x 54" 8'9" 10'0" 59" 67" 69" 79" S-200 30" x 54" 8'9" 59" 69" S-201 30" x 54" 10'0" 67" 79" S-300 30" x 60" 8'9" 59" 71" SP-89 22½" x 60" 10'9" 71" 83" SP-109 25½" x 60" 10'9" 71" 83" SP-309 30" x 60" 10'9" 71" 83" The Marwin Folding Attic Stairway is designed with the "Pro" Contractor and quality-oriented dealer in mind. All wood components are sourced from high-grade SYP lumber with quality and safety in mind. O P TIO NAL FIRE RETARDANT TREATMENT: The upgraded (9mm) plywood used on our Fire Treated Stairs is treated with D-Blaze fire retardant which meets the UL standards for the designation of FRS Rating. This means that the treatment has met the 30 minute test standards for Flame Spread, Smoke Developed, & Fuel C onsumption to achieve the FRS designation by Underwriters Laboratories. The fire retardant treated plywood used in The Marwin C ompany, Inc. stairways carries a C lass I or ‘A’ rating which is recommended for areas where fire hazards are most severe. Materials with the lowest rate of flame spread (0-25) are classed by all building codes as C lass I or ‘A’. D-Blaze’s flamespread characteristics have been tested and approved by the following applicable standards: - NFPA Standard No. 255 - ASTM Standard E-84 - UL C lassified with FR-S Rating