Wood Frame Construction


Wood Frame Construction-General
Wood and Steel Beams
Exterior Sill Plates
Floor Joists
Openings in Wall Frame Construction
Openings in Floor Frame Construction


                   Send Your Questions to : Bill@ResidentialDesignandConsultingGroup.com

Wood Frame Construction - General

Wood Frame Construction is practised all over North America. There are two systems of framing, Platform Frame Construction (conventional)and Balloon Frame Construction (traditional). Our plans are designed using Platform Frame Construction.

                   Send Your Questions to : Bill@ResidentialDesignandConsultingGroup.com

 

Wood and Steel Beams

In the basement it is best to use steel beams and columns for the primary structure, which rest on the foundation wall or concrete footings. And use wood beams for secondary structural elements. In common situations the main structural beams rest on the foundation in pockets created when pouring the foundation. The steel columns that support these beams at regular intervals are supported on concrete footings which are located below the floor slab. The floor slab is poured baring the bottom of the column with 4" concrete. The contact between concrete and steel is better then if wood was in contact with concrete which is susseptable to moisture and would have to be protected.

                   Send Your Questions to : Bill@ResidentialDesignandConsultingGroup.com

 

Exterior Sill Plates

Exterior sill plates are 2" X 4" or 2" X 6" laid flat and anchored to the foundation wall using 1/2" dia. steel bolts. They are 6" in length and embedded a min 4" into the top of the foundation wall and spaced at 8'0" on centre. There should be a min. of 2 bolts per sill plate. A neoprene gasket should be installed between the sill plate and top of foundation to prevent air leakage.

The exterior sill plates provide an even bearing for the floor joists and help tie the wood frame structure to the foundation. This helps to prevent lateral movement or lifting during high wind conditions.

Poured Concrete - Conventional Method

When you pour the foundation wall, level the top of the concrete at the top of the foundation wall after pouring. Embed the anchor bolts into the top of the foundation wall 4". Space them out at 8'0" o.c. When the poured concrete foundation wall has set and the forms removed place the neoprene gasket where the sill plate will be located and install the sill plate. Use nuts and washers to fasten the sill plate to the foundation.


Poured Concrete-Traditional Method

After you have poured the foundation wall and levelled the top, pre-drill the 2" X 6" sill plates at 8'0" o.c. to accommodate the anchor bolts, staple a layer of poly to the underside and insert the 6" anchor bolts into the 2" X 6" sill plates. Embed the bolts into the concrete along with the sill plate. Level all sill plates in both directions.

                    Send Your Questions to : Bill@ResidentialDesignandConsultingGroup.com

 

Floor Joists

                    Send Your Questions to : Bill@ResidentialDesignandConsultingGroup.com

 

Openings In Wall Frame Construction

When their is a load ( roof load, second floor load, two story cathedral ceiling ) on a interior or exterior load bearing wall with a opening, good construction practice would be to use min. 2 Trimmer studs on both sides of the opening to support the header beam. If the opening is large and supports a large load a min. of 3 Trimmer studs is recommended on both sides of the opening to support the header beam and carry the load without incurring buckling of the Trimmer studs. ( consult a structural engineer )


                   Send Your Questions to : Bill@ResidentialDesignandConsultingGroup.com

 

Openings in Floor Frame Construction

Openings in Floor Framing
Framing members ( header and trimmer joists ) surrounding stair openings should be doubled to prevent deflection in the floor system.

Blocking for Exterior Load Bearing Walls
When their is a load ( roof load, second floor load, two story wall, large area of windows ) on a exterior bearing wall parallel to the (2"X10" @ 16"o.c.) floor joists , it is a good construction practice to provide (2"X10" @ 16"o.c.) blocking perpendicular from the header joist to the first joist. This practice will enable the loads to be transferred uniformly to the foundation wall at 16"o.c.

Blocking for Lateral Support of Foundation Wall
Employing this construction practice where the foundation wall is parallel to the floor joists also helps to laterally support the foundation wall at the top perpendicular to floor joists.
Blocking For Interior Non-loadbearing Walls
Interior walls that are non-loadbearing and run parallel to the (2"X10" @ 16"o.c.) floor joists should be supported by (2"X10" @ 16"o.c.) blocking between floor joists for the entire length of the interior non-loadbearing wall.


Blocking For Interior Non-loadbearing Walls
Interior walls that are non-loadbearing and run parallel to the (2"X10" @ 16"o.c.) floor joists should be supported by (2"X10" @ 16"o.c.) blocking between floor joists for the entire length of the interior non-loadbearing wall.

                    Send Your Questions to : Bill@ResidentialDEsignandConsultingGroup.com