ground floors

which timber is most suitable for floor joists

• pine

• spruce

• larch

• beech

herringbone strutting stops joists from

• twisting

• bending

• sagging

• creaking

the specification for timber joists would be found in the?

• building suppliers website

• OneFile data

• building schedule

• British standards

what is the area of a room measuring 5 metres x 4 metres (write numbers only)

the perimeter is ?

• diagonally to check for square

• the length of the room

• height x width

• the distance round the outside of a shape

where would you find upto date legislation on floors

• floor manual

• architects drawing

• summary of standards

• building regulations

40mm galvanised twist nails would be used for ?

• fixing joists to hangers

• fixing chipboard flooring down

• fixing plasterboard

• fixing coathooks

Once the safe boring zone calculations have been done where is the best place to bore a hole in a joist ?

• anywhere it is needed

• as near to the bottom edge as possible

• the neutral axis

• as near to the top edge as possible

which one of these joists doesn't have to be thicker or doubled up when creating an opening in the floor ?

• trimmer

• trimmed

• trimming

• king stud

fitting a stair case will put an additional ____ on the supporting joists