Timber Floor Construction Details

Ground floor hollow or timber floor hollow floors also known as suspended or timber floors are simply timber joists suspended across and supported by load bearing walls under the floor.

Timber floor construction details.

Suspended timber ground floors consist of the finished timber floorboards being attached to floor joists which are suspended above the subfloor of the foundation. Wooden battens of 50 to 75mm thickness and trapezium in shape are embedded in bed concrete at an interval of 500 to 700mm. 2 heavy timber construction details. A wallplate is then attached to the top of the tassel walls on which the floor joists rest on.

Planks are connected to battens by using screws. Construction details in this type of flooring timber planks of 20 to 25mm thickness and width 150 to 200 a concrete bed of 100 to 150mm thick is laid. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. Details for conventional wood frame construction.

An intermediate wall with a small foundation may be needed to reduce the span and keep the thickness of the floor joists to a minimum. Wooden planks are laid on the battens. The ends of these timber joists are built into or suspended by joist hangers from the external walls of the property. These floor joists are raised above the subfloor on small supporting walls called tassel walls or sleeper walls.

The details were adapted from figures in the apa publication the advanced framing construction guide form m400 which highlights construction. Such methods use a 4 foot design module which governs a 16 inch spacing of joists studs rafters. The timber floor joists should be sized correctly depending on their span length between supports and are normally laid across the shortest span from wall to wall with a gap underneath. Examine a variety of floor to exterior wall details for use in wood frame type iii construction and discuss code compliance paths and approval rationale for each.

Wood frame or glued laminated arches for roof con struction which spring from the floor line or grade and do not support floor loads shall have members not less than 6 inches nominal in width and 8 inches nominal in depth for the lower half of the height and not less than 6 inches nominal in any dimension for the upper half of the height. Discuss allowable construction types occupancies and building heights and areas for wood frame mid rise construction per the international building code. The first approach to achieving a strong durable struc ture involving economical use of materials is to follow a basic modular plan for layout and attachment of framing members. Some newer homes have manufactured i beam shaped joists.

Wood construction data 1. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.