Tie Downs

Question 1

What is the nominal fixing requirements for floor joist to bearer?

Answer 1

2 x 75mm x 3.05mm dia nails

Question 2

Nominal fixing requirement for 35mm plates to studs?

Answer 2

2 x 75mm x 3.05mm dia nails

Question 3

Bottom plate fixing requirement for Type A Bracing?

Answer 3

Up to 38mm plate - 2 x 75mm x 3.05 dia @ 600mm CTS max
On a slab, 1 x 75mm masonry nail @ 1200mm CTS max

Question 4

Fixing for top and bottom plates, 9m truss span, N1, sheet roof?

LOOK THIS UP IN 1684.4

Answer 4

Plates 2/75mm x 3.05mm nails
30 x .8mm gal strap @ 1200mm CTS max
4 x 30mm x 2,8mm nails at end of each strap

Question 5

Fixing for top and bottom plates to studs, 10500m truss span, N2, sheet roof?

LOOK THIS UP IN 1684.4

Answer 5

Up to 38mm plate - 2 x 75mm x 3.05 dia through plate
30 x .8mm gal strap @ 1200mm CTS with 6/30 x 2.8mm dia nails each end

Question 5

Fixing for truss to top and bottom plate, 12m truss span, 600mm truss spacing, N1, sheet roof?

LOOK THIS UP IN 1684.4

Answer 5

1 x framing anchor with 3 nails to each leg
Gal strap over truss, ends fixed to plate with 3/30 x 2.8mm dia nails
2 x 75mm x 3.05mm dia nails

Question 6

Fixing for trusses to top plates, 11000m truss span, 900mm truss spacing N2, sheet roof?

LOOK THIS UP IN 1684.4

Answer 6

Looped 30 x .8mm gal strap with 4/30 x 2.8mm dia nails each end plus 2 framing anchors

Question 7

Roof battens to trusses fixing, 600mm truss spacing and 600mm batten spacing, N2, sheet roof?

LOOK THIS UP IN 1684.4

Answer 7

2 x 75mm x 3.05mm dia plain shank nail
OR
1 x 75mm x 3.05mm deformed shank nail