Sourcing Modern 4" x 2" Joists That are not 45mm x 95mm


Postby welshp » Mon Apr 23, 2018 3:04 pm

Hi all, new to the forum and hoping to find a solution to my problem as I am struggling to resolve elsewhere so hoping someone can help.

I am in the process of raising the joist height in a 1970's property I have purchased which currently has 4" x 2" joists to accommodate more insulation. I need the new joists to butt up against the existing ones so need the same size as I will be boarding on top. Having spent a couple of weekends trying to hunt down the right size, it would appear that modern 4" x 2" or 47mm x 100mm is actually 45mm x 95mm which causes me an issue

Does anyone know anywhere either down south or that will deliver down south where I can purchase graded timber of this old school size please?

Cheers,

Paul.
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Postby Sometimewoodworker » Thu May 10, 2018 2:40 am

You need to contact a timber merchant and special order the finished size you want. Not difficult if you want a lot, not inexpensive if you just want a few. Probably at least 3 to 4 times more expensive than a standard size.

FWIW 2" x 4" has never been the standard finished size, it has always been the size before planning and thicknessing so if imperial it is around 1¾ x 3¾
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Postby welshp » Thu May 10, 2018 9:53 am

Excellent, thanks for the info
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