That gives you a 5 1 4 in.
Maximum hole in 2x10 floor joist.
The diameter of holes shall not be greater than 1 3 the depth of the floor joists.
Length d 3 d 6 max.
Area in the middle of the 2 10 joist where the hole can go.
In diameter if the joist measures 9 in.
What you are seeing are 3 pvc pipes going through 2x10 sawn lumber joists of the second floor.
Deep the approximate size of a 2 10 after normal shrinkage.
Maximum allowable size for notches bored holes for floor joist ceiling joist rafters 2 x 4 2 x 6 2 x 8 2 x 10 2 x 12 depth of end notches.
Outer 1 3 of span effects of notches can be reduced by using a gradual tapered notch instead of a square cornered notch.
They do not affect hole placement.
They are located 3 away horizontally edge to edge from a larger hole.
30lb live load the joist spans are 13 6 and the bores occur in the exact middle of the joists top to botttom and in the end 3rd of the joist spans nearest the exterior bearing wall.
D actual dimension d 3 max.
In the case of your 2 10 joists the maximum diameter is 35 64 in.
Notches in 2x4 studs fig.
Knockouts are located in web at approximately 12 on center.
You can drill the holes anywhere along the length of the joist first photo.
Minimum distance from table b 1 round holes may be cut anywhere in web outside of hatched zone if.
Of solid wood between the top and bottom edges of the joist and the edges of any hole.
Bored holes in 2x4 studs d 6 max.
Minimum applies to all holes except knockouts closely grouped round holes are.
You also have to leave at least 2 in.
Leave 1 8 of web minimum at top and bottom of hole.
The bored hole sizes were 4 1 2 in diameter.
The illustration and table below shows where cuts are permitted and the maximum size allowed based on d the depth of the joist top to bottom in inches.
Holes cannot be closer than 2 to the bottom or top of a joist or to another hole or notch in the joist.
The hole cannot be larger than one third the depth of the joist so the maximum hole size for a 2 12 joist actual size 1 1 2 x 11 1 4 in is 3 3 4 in.
Placement of cuts in floor joists table 1.
Floor ceiling rafters 7 8 1 3 8 1 13 16 2 5 16 2 13 16 depth of notches located between the.
Diameter plenty big enough for running cable.
For example a hole should not be greater than 3 in.
Holes may be located vertically anywhere within the web.
For a 2 10 where actual depth is 9 25 inches the maximum allowable hole diameter would be just over three inches.
