Laserfiche WebLink
SCHEDULE1 <br /> • <br /> 3/8" DIAMETER LAG SCREWS <br /> MAXIMUM SPACING OF LAG SCREWS PER JAMB (IN) <br /> MAIN SUPPORT MEMBER SPECIES <br /> SYP DOUGLAS FIR SPF <br /> LOAD PER SPECIFIC SPECIFIC SPECIFIC <br /> JAMB (LB /FT)NOTE 3 GRAVITY - 0.55 GRAVITY - 0.46 GRAVITY - 0.42 <br /> 100 24 24 24 <br /> 120 24 24 24 <br /> 140 24 24 24 <br /> 160 24 24 24 <br /> 180 24 24 24 <br /> 200 24 24 24 <br /> 220 24 24 24 <br /> 240 24 24 24 <br /> 260 24 24 22 <br /> 280 24 23 20 <br /> 300 24 22 19 <br /> 320 24 20 18 <br /> 340 24 19 16 <br /> 360 24 18 16 <br /> 380 22 17 15 <br /> 400 21 16 14 <br /> 420 20 15 13 <br /> 440 19 15 13 <br /> 460 18 14 12 <br /> 480 18 13 12 <br /> 500 17 13 11 <br /> 520 16 12 11 <br /> 540 16 12 10 <br /> 560 15 11 10 <br /> 580 14 11 9 <br /> 600 14 11 9 <br /> 620 13 10 9 <br /> 640 13 10 9 <br /> 660 13 10 8 <br /> 680 12 9 8 <br /> 700 12 9 8 <br /> 720 12 9 8 <br /> 740 11 8 7 <br /> 760 11 8 7 <br /> 780 11 8 7 <br /> 800 10 8 7 <br /> 1. BASED ON 3/8" DIAMETER LAG SCREWS WITH 1" O.D. WASHERS WITH A 1- 9/32" <br /> THREAD PENETRATION INTO SEASONED DRY WOOD SUPPORTING STRUCTURE. <br /> 2. PROVIDE QUANTITY OF LAG SCREWS AS REQUIRED TO MAINTAIN MAXIMUM SPACING AS SHOWN IN <br /> TABLE WITH A MINIMUM OF THREE (3) LAG SCREWS PER JAMB. LAG SCREWS AT TOP AND BOTTOM <br /> OF JAMB SHALL BE PLACED A MAXIMUM OF 6" FROM THE END OF THE JAMB. <br /> 3. LOAD PER JAMB CALCULATED BY TAKING DESIGN LOAD (PSF) TIMES DOOR WIDTH (FT) DIVIDED BY 2. <br /> EXAMPLE: DESIGN LOAD = 30psf <br /> DOOR WIDTH = 16ft <br /> LOAD PER JAMB = 30psf x 16f1/2 = 2401b/ft <br /> 4. CHART IS BASED ON 6-6" MINIMUM AND 24' -0" MAXIMUM DOOR HEIGHT. <br /> 5. DOOR JAMB TO BE 2x6 NO. 2 GRADE SPF LUMBER OR BETTER MOUNTED DIRECTLY TO SUPPORT STRUCTURE. <br /> 6. DESIGN OF THE SUPPORT STRUCTURE SHALL BE THE SOLE RESPONSIBILITY OF THE BUILDING DESIGNER <br /> AND SHALL BE DESIGNED FOR THE JAMB LOAD LISTED IN ABOVE TABLE AS CALCULATED PER NOTE 3. <br /> 7. MINIMUM EDGE DISTANCE SHALL BE 1 -1/2" AND HOLES SHALL BE PRE- DRILLED TO PREVENT SPLITTING. <br /> 8. CALCULATIONS CONFORM TO ANSI /AF &PA NDS -2005. <br /> 9. LAG SCREWS SHALL CONFORM TO ANSI / ASME STANDARD 818.2.1. <br /> Approved <br /> Mark R. Barrow, PE <br /> Florida License No. 57389 <br /> Wayne Dalton Corp. <br /> 3395 Addison Drive <br /> Pensacola, FL 32514 Revision P8 <br />