Edging course last? - Edging course last

[russepa]

Hi Guys,

Previously I have always laid all my edging course first, as I find this helps with providing a guide for my sand levels and screeding. And I am comfortable with using trammal bars for wider runs.

The project I am currently on is 51m long by 3.6m wide, which with 2 of us screeding is probably do-able between the edgings?

However, I have laid one run of edgings and I am paranoid that I will probably run in with my 2nd edging course leading to unwanted cuts.

I cant see a way of not putting the 2nd edging course in before I lay my blocks, but wondered if anyone had any ways that they would recommend I could try. I am fortunate that I do not have any levels (within reason) that I have to work to.

Also the blocks I am using are 80mm, I take it 50mm screed sand is still okay?

any advice welcomed!

[lutonlagerlout]

russ the recommended sand has gone down to 30-40mm but i guess with 80 mm blocks you will be ok
I take it you must be doing 90 deg herringbone otherwise you wouldnt be worried about the cuts?
if you are that worried lay 18 blocks out ened to end and cut a piece of timber or ally as a profile 5 mm longer than that
as you lay your second edging use the profile to check alignement
better 5mm big than tight
doing edgings last is potentially a bodge
LLL

[local patios and driveway]

String line my man. Simply measure one end and transfer measurement to other end, run your line, lay your edge. Simples.

[russepa]

Yes will be a hering bone

Ok string line it is with timber spacer to be sure.

Always paranoid that I'm pulling the line sometimes with the odd block, especially on such a long run.

Found a few edgings that I laid today appeared to be off square to the line despite keeping them tight to the last. I spose I should always go to the line at all lengths

Thanks for the advice, there's never a short cut to doing a job correct!

[local patios and driveway]

Amen. I dont hurt to measure back every now and then, when i use a line i tend to lay back from it a little anyway, as you say touching the line can only serve to lose accuracy

[lutonlagerlout]

dan the Op stated 51 M long ,I have laid a lot of bricks but i never saw a line longer than 15m
a laser may be the answer but the main thing is get it straight
LLL

[mickg]

use a few steel road pins along the length and measure off the kerb to get the pins parallel, wrap your line round the pins making sure its taught and then use boning rods or bend down and eye the line through to get it to the correct position required

wrap insulation tape to the under side of the line so if it snaps or has to be taken off for any reason you know where to reposition it again

I have got balls of coloured line what must be 3 times the length you need to cover