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Carpentry & Joinery

Fixing 2 x 2 timber to rafters

Anonymous user 23/02/2024 - 3.47 PM

I need to increase the rafter depth by 50mm so I can place 100mm insulation between the rafters. The rafters are 100x50mm. Can someone advise what size screws to fix 50 x 50 timber to underside of rafters to build it out. 12.5mm Plasterboard will be screwed to the 50x50 timber. Was thinking a 75mm screw would suffice.

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7 Answers

Jack Interiors Ltd

Rating: 5 out of 5
Benfleet
I would use 100 no 5 screws fixed at 400mm centres.
Answered15 May 2022
1

Romeo Llabani Plastering

Rating: 5 out of 5
Northampton
Definitely 100mm screws at 400mm centres (apart) Then 38mm or 42mm for the plasterboard at 300mm centres (apart) Good luck
Answered16 May 2022
0

M. L. Property maintenance

No reviews yet

Lydney
yes 100 mm screws at 400n centres.thats the way to go.
Answered24 May 2022
0