Oh indeed, meant to mention that 8x4' ply is 6, 12, 18 or 24mm thick.Tichtheid wrote: ↑Wed Sep 22, 2021 9:12 amHappyhooker wrote: ↑Tue Sep 21, 2021 4:05 pmI buy materials in a weird mix of imperial and metric. Sheet ply is 8'x4', but plasterboard 2400x1200 (4&2cm less). Timber is even odder. I buy 4"x2" in lengths measured by metre.tabascoboy wrote: ↑Sun Sep 19, 2021 11:42 am Not an artisan or craftsman nor much of a DIYer but much prefer to use mm / cm / m. That said my house is old enough that doors, windows, rooms were plainly built to measurements of feet and inches, so you do end up with finding "odd" measurements like 914 mm
My tape measure has metric on both sides. Much easier to use.
The timber merchants I use around here sell sheet ply and mdf etc in 8x4, but use the metric measurements, thickness is in mill too.
I’m a hobbist guitar maker and the plans I have for pre war guitars all come from the states so I have to measure everything myself and cross out/write over the numbers on the plans.
Plumbing stuff is fucked up as well.