Measure twice, cut once, the old saying goes.
In my latest project, I measured once, committed that measurement to memory (in stead of writing it down), fished it out of the memory bank a day or so later to do some mind-maths on it, then used it (the most critical measurement of all), to design and construct the framework for an outdoor kitchen counter. Needless to say, I got the measurement wrong and the whole thing is about 100mm short, hahaha *face palm*
Fortunately I caught it now, before I start prepping for a concrete counter-top pour,
Anyway, here's where it's at...
Decided to design this one in Fusion360 (not my 1st language, quick and easy, AutoCAD). Why Fusion360, partly to keep my skills sharp, partly for the ease at which it creates drawings and BOQ's (or in my case, "cut-lists", based on the way I named the parts in the assembly)
Here's the back view of the bench (hence the obstructive cross brace). This is just the frame, and the finished unit will be clad with marine-ply and have cupboard doors etc. Braai base is for a Weber Q3200 (which I have to "convert" into bench mountable). The Weber will be sitting on Hardie Board (fibre cement sheets) to protect the wood from the heat.
The concrete counter top will be cast in place using the Z-form system (plastic "snap-away" forms, eliminating the need for extensive building).
The frame is built from 90x45mm (two-by-four) H3.2 treated structural timber (currently the rare stuff here in NZ), and fixed together the quickest and easiest way... 90mm galv framing nails in a nail gun. So freakin easy! It will also sit on 4x lockable casters.
I think I went a bit overboard on the frame design, concerned with my calculated concrete weight of around 100kg (another reason I want to cast in situ). I am likely going to remove the cross brace from the construction, even though it is there to prevent racking, so far this thing feels super solid!
Anyway, with about 2hrs of messing about in Fusion 360, I produced a cut-list, took a pic with my phone (no printer at home) and hit the mitre saw...
Then after about 30min of cutting and another 45min of assembling, there was this... something that resembles a dodgy soap-box cart
You can see the Weber that needs "converting" in the background.
Still need to add the outer legs to transfer top load down to bottom beam (taking load off nails). Also adding adjustable rubber feet on outer corners to add stability when cart is stationary, as casters are pretty close together (to keep them invisible within the cladding) and cart rocks front-to-back.
And here you can see where I built it about 100mm short...
The plan is for it to fit pretty snugly between those 2 rear uprights (even with the 18mm ply cladding and 35mm counter-top overhang)
I have an idea or 2 for a fix, so will extend it out by about 90mm for a better fit.
So once again, measure twice... cut once.