Ontario Building Code Floor Joist Blocking

In addition to providing lateral support blocking helps transfer weight to adjacent joists so that the floor acts as a unified system.

Ontario building code floor joist blocking.

Building code requires the use of blocking for floor joists that exceed 2 inches in width by 12 inches in depth. Forming part of sentence 9 23 10 1 1. Blocking also needs to be provided at the supporting end of a joist. The best way for a joist to transfer its load is for it to stack.

Section 9 of the ontario building code. Complete section 1 of the ontario building code. Size and spacing of studs. Attach a rim joist to the end of each joist with 3 10d nails or 3 10 by 3 inch wood screws.

Your online resource for ontaio s complete online building code. Section 9 of the ontario building code. Stud size and spacing 1 except as provided in sentence 2 the size and spacing of studs shall conform to table 9 23 10 1. Attach a continuous rim joist or blocking at the joist end as shown in figures 3 5 and 7.

The ontario building code online. 2 where the bottom wall plate or sole plate of an exterior wall is not nailed to joists or blocking in conformance with table 9 23 3 4 the exterior wall may be fastened to the floor framing by a having plywood osb or waferboard sheathing extend down over floor framing and fastened to the floor framing by nails or staples. 1 see sentence 9 23 3 4 2. When choosing 2x6 joists the corresponding ledger board must be a 2x8 minimum.

Floor joist building code requirements. Nailing blocking to joists at each end top and bottom with 10d nails. This simply means for it to rest directly on top of another framing member like a drop girder a wall or a pressure treated mud sill there is some criteria the joists must meet according o the 2012 international residential building codes. The ontario building code cantilevered floor joists 9 23 9 9.

The ontario building code stud size and spacing 9 23 10 1. Section r502 10 of the international residential code states that header joists can be the same size as the floor joists when the header joist span isn t greater than 4 feet but if the header joist span is more than 4 feet you ll need to double the header joist and ensure that it s capable of. 2 the cantilevered portions referred to in sentence 1 shall not. What you will notice from this checklist is that there is not really a specific deck building code per se.

Cantilevered floor joists 1 floor joists supporting roof loads shall not be cantilevered more than 400 mm beyond their supports where 38 mm by 184 mm joists are used and not more than 600 mm beyond their supports where 38 mm by 235 mm or larger joists are used. Complete section 4 of the ontario building code. Rather there are sections of the residential codethat apply to building standards related to structures such as railings stairs stringers treads footings framin and ledger boards we ve tried to summarize them and put them all together for you.