Ontario Building Code Floor Joist Blocking

Size and spacing of studs.

Ontario building code floor joist blocking.

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. The ontario building code cantilevered floor joists 9 23 9 9. Your online resource for ontaio s complete online building code. Floor joist building code requirements.

Blocking also needs to be provided at the supporting end of a joist. Building code requires the use of blocking for floor joists that exceed 2 inches in width by 12 inches in depth. The best way for a joist to transfer its load is for it to stack. 1 see sentence 9 23 3 4 2.

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. 2 the cantilevered portions referred to in sentence 1 shall not. 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.

The ontario building code stud size and spacing 9 23 10 1. Notes to table 9 23 3 4. Section 9 of the ontario building code. What you will notice from this checklist is that there is not really a specific deck building code per se.

In addition to providing lateral support blocking helps transfer weight to adjacent joists so that the floor acts as a unified system. Complete section 1 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 rim joist to the end of each joist with 3 10d nails or 3 10 by 3 inch wood screws.

Section 9 of the ontario building code. The ontario building code online. Additional support for the floor joists is achieved by nailing the ends of the joists into headers. Forming part of sentence 9 23 10 1 1.

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. When choosing 2x6 joists the corresponding ledger board must be a 2x8 minimum. Attach a continuous rim joist or blocking at the joist end as shown in figures 3 5 and 7.