These can include 30 and 60 minute fire resistance. Regardless of where you choose to purchase it, it is essential to look for the official stamp to ensure you are getting genuine fire-rated plywood that has passed the relevant tests. To find out what the minimum standards are for buildings in your area, make a point of looking at your local building codes. span 14', live load 40lbs, 2"X 6" wood planks, ceilingr 5/8" sheetrock, 2" X 12" joists @ 16" o.c., w/2-1/2" wood decking , 1 layer 5/8" GWB, 2" x 4" web trusses @ 24" o.c., span by engineer, load 60lbs, 1 layer 3/4" plywood, 1 layer sound mat, 1 layer gypcrete,1/2" RC channel, 5/8" type "X" gwb, 2" x 4" wood web trusses2' deep @ 24" o.c., 3/4" OSB T&G subfloor, 1/2" cellulose sound board, 1 layer 5/8"type X GWB, 15" wood web joists @24" o.c., R-20 fiberglass batts, subfloor 3/4" osb, span by engineer, load 40lbs, ceiling 5/8" type X osb, 18" web trusses @116" o.c., span by engineer, load 40lbs, subfloor 3/4"plywood, ceiling 5/8" type X gwb, 2" x 4" trusses w/2" x 6" bottom chord @ 24" o.c. High-Performance Fire Resistant and Flame Retardant Paint. The wood then undergoes a series of quality control checks to ensure that it is able to resist ignition and slow the spread of fire. Supplied as a paint grade, unfinished door, ready for finishing on-site, these doors have the ultimate flexibility in terms of matching with other doors or interior styles. } These wall assembly files are used for planning and estimation purposes for many UL wall types, such as fire-rated wall assemblies. The stamp is required to be displayed on this type of wood in a highly visible location. You may be wondering how long fire-rated plywood is good for too. Use the link below instead. Some common thicknesses include inch, 5/8 inch, and 3/4 inch. Standard precautions such as dust masks and goggles are sufficient when working with this type of wood because the chemicals used to give it fire-retardant properties are not considered hazardous. Forums. 8 Commercial Blvd, Suite E Anybody know how long gypsum 12.5mm pink fire board is rated to in minutes. Quality is rated by the American Plywood Association (APA), which is accepted by most building codes, so look for the APA . Fire-rated plywood is specialty plywood that was made by pressure-infusing plywood with flame-retardant chemicals. The boards also carries 60 minute (Euroclass B) and 30 minute (Euroclass C) fire ratings under BS 476: Part 22: 1987 for use as an internal wall partition. Email: Most major hardware stores will carry it, including top names like Ace Hardware, Lowes, as well as Home Depot. There are 20 types of plywood, and not all of them are fire-rated. Don't miss the latest insights, news and product offerings from USG. In ASTM Fire retardant properties are defined as per Class and this majorly classified by the combination of Spread of fire and Smoke emission Index.