P3 Joist Typical Holes – Canada

P3 Joist Typical Holes Figure 6

Cutting Holes

  • Never drill, cut, or notch the flange. Never over-cut the web.
  • Holes in webs should be cut with a sharp saw.
  • For rectangular holes avoid over cutting the corners as this can cause unnecessary stress concentrations. Slightly rounding the corners is recommended. Starting the rectangular hole by drilling a 1” diameter hole in each of the 4 corners and then making the cuts between the holes is another good method to minimize damage to I-Joist.
Location of Circular Holes in P3 Joist Webs

Simple of Multiple Span for Dead Loads up to 15 psf and Live Loads up to psf1,2,3,4

Joist Depth Joist Minumum distance from inside face of any support center of hole [ft-in]
SAF(5)  2″  3″  4″  5″ 6″ 6-1/4″  7″  8″  8-5/8″  9″  10″ 10-3/4″  11″  12″ 12-3/4″
 9-12″  PJI 40 14′-3″ 0′-8″ 1′-10 3′-2″ 4′-6″ 5′-11″ 6′-4″
 PJI 60 14′-9″ 1′-5″ 2′-8″ 4′-0″ 5′-5″ 6′-11″ 7′-3″
 11-7/8″  PJI 40 16′-0″ 0′-7″ 0′-8″ 1′-5″ 2′-8″ 4′-0″ 4′-4″ 5′-5″ 6′-11″ 7′-11″
  PJI 60 16′-6″ 0′-7″ 0′-10″ 2′-1″ 3′-5″ 4′-9″ 5′-1″ 6′-2″ 7′-8″ 8′-8″
  PJI 80 17′-5″ 0′-7″ 5′-5″ 6′-11″ 7′-11″
  PJI 60 16′-6″ 0′-7″ 0′-10″ 2′-1″ 3′-5″ 4′-9″ 5′-1″ 6′-2″ 7′-8″ 8′-8″
  PJI 80 17′-5″ 0′-7″ 1′-8″ 2′-11″ 4′-3″ 5′-7″ 5′-11″ 7′-0″ 8′-7″ 9′-8″
14″   PJI 40 17′-5″ 0′-7″ 0′-8″ 0′-8″ 0′-11″ 2′-2″ 2′-6″ 3′-6″ 4′-10″ 5′-9″ 6′-3″ 7′-10″ 9′-1″
  PJI 60 17′-11″ 0′-7″ 0′-8″ 0′-8″ 1′-9″ 3′-0″ 3′-4″ 4′-4″ 5′-9″ 6′-8″ 7′-3″ 8′-10″ 10′-1″
  PJI 80 19′-2″ 0′-7″ 0′-8″ 1′-4″ 2′-7″ 3′-11″ 4′-3″ 5′-4″ 6′-9″ 7′-8″ 8′-3″ 9′-10″ 11′-2″
16″   PJI 40 18′-9″ 0′-7″ 0′-8″ 0′-8″ 0′-9″ 0′-9″ 0′-10″ 1′-9″ 3′-0″ 3′-10″ 4′-4″ 5′-9″ 6′-10″ 7′-3″ 8′-10″ 10′-1″
  PJI 60 19′-6″ 0′-7″ 0′-8″ 0′-8″ 0′-9″ 1′-6″ 1′-10″ 2′-10″ 4′-2″ 5′-0″ 5′-6″ 6′-11″ 8′-1″ 8′-6″ 10′-1″ 11′-5″
  PJI 80 20′-10″ 0′-7″ 0′-8″ 0′-8″ 1′-3″ 2′-6″ 2′-10″ 3′-10″ 5′-2″ 6′-0″ 6′-7″ 8′-0″ 9′-2″ 9′-7″ 11′-3″ 12′-7″
18″  PJI 80 22′-5″ 0′-7″ 0′-8″ 0′-8″ 0′-9″ 0′-9″ 0′-10″ 0′-10″ 2′-3″ 3′-1″ 3′-8″ 5′-2″ 6′-3″ 6′-8″ 8′-3″ 9′-7″
 20″   PJI 80 23′-11″ 0′-7″ 0′-8″ 0′-8″ 0′-9″ 0′-9″ 0′-10″ 0′-10″ 1′-9″ 2′-6″ 3′-1″ 4′-5″ 5′-5″ 5′-9″ 7′-3″ 8′-4″
22″   PJI 80 25′-4″ 0′-7″ 0′-8″ 0′-8″ 0′-9″ 0′-9″ 0′-10″ 0′-10″ 1′-3″ 2′-0″ 2′-5″ 3′-9″ 4′-8″ 5′-0″ 6′-4″ 7′-4″
 24″   PJI 80 26′-9″ 0′-7″ 0′-8″ 0′-8″ 0′-9″ 0′-9″ 0′-10″ 0′-10″ 0′-10″ 1′-7″ 2′-0″ 3′-2″ 4′-1″ 4′-4″ 5′-7″ 6′-6″

NOTES:

  1. Above tables may be used for P3 Joist spacing of 24” on center or less.
  2. Hole location distance is measured from inside face of supports to center of hole.
  3. Dis