Forum

Timber groynes installation..

Hi there,

Would you please advise me on the method for installation of oak timber sleepers vertically into the ground? I've been advised to put them in the ground by 300mm and postcrete them in. They will be free-standing with approximately 500mm between each one.

Thanks very much for your help!

Best wishes

Judi..

You need to be a member of Landscape Juice Network to add comments!

Join Landscape Juice Network

Email me when people reply –

Replies

  • I think you'll need to give a few more details................ how tall are they going to be? Are they going to be holding something... back like soil? What sort of soil are you putting them in? So many questions!!

  • PRO

    This may help (I can't take credit for schematic as it was sent to me when we had a similar/retaining wall  requirement).

    Just make sure specify the correct UC grade sleepers (not just go for the cheapest) otherwise they will fail at ground level within 5-7yrs max. Select from a supplier that will guarantee their use.

    • PRO

      I think it's worth pointing out that all the timber guarantees (that I know of) covers only the timber, not the much larger cost of breaking out and reinstalling! We use nothing but UC4 posts and they don't last much more than 8 years in the above scenario in sandy soils.

      Judi has done the right thing in my book by going for oak sleepers. Creosoted will last even longer, but not suitable for many project due to bleeding.

  • if they are free standing and 500mm apart i cant see they will be holding anything back, but the height will affect the depth, dependent on what you are trying to achieve

  • Thanks so much for your responses. What I'm doing is creating a small beach garden, there is no retaining element to the design. Drawing attached. Obviously, I want them to last as long as possible in the ground. The upright sleepers are representing sea groynes. And I want to put large square bolts through them, hopefully to get rusty in time and all aged to look more interesting.. The design has evolved since this initial sketch. We are now putting in curved pathways to summerhouse and beach area. I'm having the groynes at different heights: 2 x 1000mm, 2 x 800mm & 2 x 600mm.

    • PRO

      Really nice sketch! The only thing is- the sleepers appear way fatter in that drawing than they will in real life. Oak sleepers are only 200mm wide. You may need a couple extra to achieve the same effect.

      You won't have to wait long for the bolts to go rusty in oak! Spray them with a bit of salty water too.

      I'd put the sleepers at least 600mm in the ground looking at that. If the ground is at all loose or gets wet 300mm will have them leaning over in no time, regardless of concrete.

      • Hi Ben,

        Many thanks for your reply! Good advice about putting two uprights together.. I really like that idea!

        Best wishes

        Judi..

        • Hi Ben, this is how the garden turned out in reality. Next is the planting and summerhouse in the top right-hand corner next to the beach feel garden. Do you see the upright timber groynes.. love it and so do my clients. Thanks so much for your advice! :-)

           

    • PRO

      A little tip.

      To kickstart aging of bolts, pop them in a bbq for an hour (especially if they are galvanised). 

       

This reply was deleted.

Industry Jobs

Landscape foreman / Skilled Landscaper

We currently require a self-motivated skilled landscape foreman with a minimum of five years experience to take on this role. Their skills should include laying paving, brickwork, timberwork, laying setts, installing drainage and irrigation, turf laying and operating a 360 excavator. The applicant should be polite, able to work under pressure, lead by example and

Help us to build luxury climbing frames and treehouses

Overview This is a fantastic opportunity for a carpenter or a skilled outdoor landscaper with good wood skills to join our team. We are a small yet growing high-end manufacturer and installer of amazing climbing frames, tree houses and zip wires. We’re seeking an installer based in the SE to join the team and cover

Mechanic & Service Support Engineer

Working with a team of dedicated hard working enthusiasts in the Grass & Groundcare machinery industry the successful applicant will be responsible for undertaking the build up, pdi, servicing and repairs of a range of grounds machinery. With a range of ability’s and attributes allowing you to work under your own initiative diagnosing and repairing

Latest blog post

Trade green waste centres

If you've received help from the Landscape Juice Network and you'd like to say thank you, why not make a small donation?

The site is maintained as an indpendent industry resource and it's become an essential tool for those working in the landscape industry.

Thank you

Phil Voice

Founder Landscape Juice

Make a donation

LJN Sponsor

Advertising

Blogs

PRO Supplier

Etesia completes portfolio for Scamblers

Scamblers, based in Bourn, Cambridgeshire, believe they now have a complete portfolio of groundscare machinery after they were confirmed as Etesia UK’s newest dealer.

First established in 1974, the family owned business specialise in…

Read more…
PRO

How to Revive a Worn Out Lawn

Is your lawn weedy, mossy, baldy or just plain tired looking? In this blog we’ll show you how to revive your worn out lawn and make your neighbours turn green with envy.

 

Ireland is one of the best countries in the whole world…

Read more…
Comments: 0
PRO

In the first of a several part blog that we are writing, we will explain some of the terms that are often used in lawncare service leaflets and by contractors but many of you out there may not actually understand what they mean!…

Read more…