Retaining wall advice

[6feetdown]

So had a bit of time today to revisit this. It’s looking like the stepoc might be the way to go. Whilst normal 9” hollows are cheaper, there’s the cost of paying someone to lay them, sand/cement etc. I’ve done the online calculator and I need about 4 packs. I’ll ring a few local builders merchants in the morning and see if they can get them in, could only find one price online

Be interested to know cost for when I do mine

 

[pettsy]

Be interested to know cost for when I do mine

So for the various packs of stepoc 200 blocks to build a retaining wall 10m long, 1.125m high comes to £2312.58 from a local merchant!

 

[Smiffy]

So for the packs of stepoc 200 blocks to build a retaining wall 10m long, 1.125m high comes to £2312.58.

That seems expensive. Lords online look to come to half that? Without any discount

 

[pettsy]

That seems expensive. Lords online look to come to half that? Without any discount

The first item is for 4 packs….

 

[Smiffy]

The first item is for 4 packs….

View attachment 64108

They have quoted you for 21.6m2 but the measurements you give are 11.25m2. Unless I'm missing something. I understand if it's a smaller branch having to sell full packs but still looks expensive

 

[groundworker]

Been a while since I used these but if it's not face work you might get away with cutting the halfs on site and using a timber stop end instead of the end blocks?

That would save you a good 500 quid

 

[pettsy]

The L2’s are cheaper than Lords by £300ish. It’s the plain ends and half lengths that I’d have to buy full packs but only need about 4 and 6 to finish the ends. They’re not a stock item so don’t think I could get part packs.

 

[Giles]

Markovitz recognise the invoices lol, speak to skiddy at Tideswell tell him to price it for me might get better discount.

 

[Smiffy]

Been a while since I used these but if it's not face work you might get away with cutting the halfs on site and using a timber stop end instead of the end blocks?

That would save you a good 500 quid

This is what we would do.
There are also a couple of pallets listed on eBay.

 

[Silversabre]

This is what we would do.
There are also a couple of pallets listed on eBay.

and at auction (watts Associates - Barnsley) think its 2-3 and half if I remember correctly

 

[Giles]

Pallet of concrete blocks | SEPTEMBER SALE Day 3 Carlton Timed Sale (Builders Equipment, Garden Machinery, Attachments & Micro Plant) - Watts & Associates

Pallet of concrete blocks | SEPTEMBER SALE Day 3 Carlton Timed Sale (Builders Equipment, Garden Machinery, Attachments & Micro Plant) - Watts & Associates

Pallet of concrete blocks | SEPTEMBER SALE Day 3 Carlton Timed Sale (Builders Equipment, Garden Machinery, Attachments & Micro Plant) - Watts & Associates

Pallet of concrete blocks | SEPTEMBER SALE Day 3 Carlton Timed Sale (Builders Equipment, Garden Machinery, Attachments & Micro Plant) - Watts & Associates

Obviously 10% and getting them back from Barnsley, I’m generally up there after a sale as well with a trailer depending on what I’ve bought (often fully though )

 

[pettsy]

Allready seen the eBay ones, sadly they’re the 325mm versions so much deeper.

 

[Brendan]

Amderton don't sell directly either, so you do all the leg work with them and they get you to go through a builders merchant who get a percentage for doing sweet fa.

Design of the foundations is a bit of a ball ache off the top of my head last one I did was two layers of a393 900mm wide and made into a box around 90mm high using U bars, with L bars 100mm in from corners/end and then 200mm spacings which you then tie straight bar to to get the extra height.

You'll lose a day just tying steel, but once you have bedded the first course you just tie the steel horizontal bars and dry lay the remaining courses.

If your anywhere near northampton I'm open to offers on some stepoc 200 got around 35 full ones 3 half ends 1 full end and then the majority of the steel to do around 9m of straight wall, which consists of 47 x 1.3 bar, 24 x 3m, 100 x 350 85 350 u bars, 47 x L bars, pack of 75mm high stools, pack of 50mm tric tack spacers, bundle of tying wire
You'll just need a few extra bars and couple of sheets of a393 mesh

 

[Brendan]

Or if you do it in blockwork something similar to this

7n blocks, engineer wanted 10n but not many people stock them

 

[pettsy]

I’ve started the dig out today, got a grab lorry coming for second load of subsoil on Monday. I’ve hopefully got a builder lined up to do the blockwork, wether that’s with hollows or solids on their side I’m open to his advice. I exposed the end of the existing retaining wall and it’s a brick and a half wide as deep as I’ve seen so far.

 

[Brendan]

I’ve started the dig out today, got a grab lorry coming for second load of subsoil on Monday. I’ve hopefully got a builder lined up to do the blockwork, wether that’s with hollows or solids on their side I’m open to his advice. I exposed the end of the existing retaining wall and it’s a brick and a half wide as deep as I’ve seen so far.

More than likely would have been built off back of a fag packet drawing, got a similar one on job I'm on its 200mm hollow and has a 100mm facing bricks, the wall has rotated a bit and the facing brickwork has cracks it's holding up around 1.3m in places footing is 700mm deep in one bit and only 500mm in other bits.

The retaining wall in the pic is around 9.2m long and something like 1.6m from top of wall to bottom of footing with just under 1.1m of blockwork

You'll ideally leave 3 weeks or so between building and backfilling according to the engineer that specified that one

I've got a copy of the bre retaining walls guide, if you need one although use at your own risk etc etc

 

[pettsy]

So here’s where it’s now at. Will be filling hollows with concrete when I get chance and now brickwork is above ground level I can backfill with some type 1 until driveway gets done properly next year. Builder back in a month or two to finish rest of brickwork to match the house.

 

[V8Druid]

So here’s where it’s now at. Will be filling hollows with concrete when I get chance and now brickwork is above ground level I can backfill with some type 1 until driveway gets done properly next year. Builder back in a month or two to finish rest of brickwork to match the house.

View attachment 65839

don't forget some drainage behind that high side Matt

 

[pettsy]

don't forget some drainage behind that high side Matt

Had no moisture at all out of the bank despite all the rain. Got drainage gaps in bottom course of blocks and bricks. Behind being filled with loose rubble first then some old pea gravel I've got leftover on top.

 

[V8Druid]

Had no moisture at all out of the bank despite all the rain. Got drainage gaps in bottom course of blocks and bricks. Behind being filled with loose rubble first then some old pea gravel I've got leftover on top.

sounds like plenty of weeps'll cope fine then