Timber First Floor Construction

Some newer homes have manufactured i beam shaped joists.

Timber first floor construction. Common timber sizes used in floor construction. After you ve ordered the lumber you need use a circular saw to cut each piece to the dimensions you listed in your framing plan. To frame a floor that s 12 feet 3 7 m x 18 feet 5 5 m you would need 4 12 ft 3 7 m sill plate boards 4 18 ft 5 5 m rim joist boards and 9 18 ft 5 5 m main floor joists. 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.

You will use these bolts to attach the sill plate to the foundation. All the figures are based on normal domestic floor loadings where the floor construction is typically 18 25mm floor boards sheets with up to 12 5mm thick plasterboard and skim underneath. Unlike softwood joists timber i joists do not warp over time providing a quiet floor while open metal web joists can provide an easy means of installing services. The ground floor uses a beam and block arrangement above a basement.

The sill plate must be square even if the foundation was poured out of square. The latter options are more expensive but provide considerable benefits. The first step to building a floor for a house is to attach the sill plates to the foundation of the house. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.

To allow for easy running of services. The foundation will have bolts set into the concrete along the perimeter. For any other situation these tables may not be appropriate and you should refer to the. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.

Ce 200 details of construction. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s.