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Hi there,
I have a silly question (or three). My structural engineer has specified various beams and joists etc for the loft conversion.
For example, TR1 is specified to be "2No.50x125dp C24 Timber Joists".
But when I google that I can't find those exact dimensions and matching C rating.
What does one do? Am I not looking hard enough or am I supposed to just go one size up? For example, this is what I could find. But it is 3mm narrower and 25mm too tall.
Does the "2No." mean that 2 timbers are fixed together to form one joist?
What does "dp" mean?
Many thanks in advance.
Cheers
View media item 104478
I have a silly question (or three). My structural engineer has specified various beams and joists etc for the loft conversion.
For example, TR1 is specified to be "2No.50x125dp C24 Timber Joists".
But when I google that I can't find those exact dimensions and matching C rating.
What does one do? Am I not looking hard enough or am I supposed to just go one size up? For example, this is what I could find. But it is 3mm narrower and 25mm too tall.
Does the "2No." mean that 2 timbers are fixed together to form one joist?
What does "dp" mean?
Many thanks in advance.
Cheers
View media item 104478
Last edited: