Advice on Bulding a Pergola

Discussion in 'General Gardening Discussion' started by Kristen, Feb 14, 2009.

  1. Little Miss Road Rage

    Little Miss Road Rage Gardener

    Joined:
    Jul 1, 2008
    Messages:
    1,480
    Ratings:
    +1
    What about those spikey post holder things u just bang into the ground. To level it up u just bang the high ones a bit more job done :hehe:
     
  2. lollipop

    lollipop Gardener

    Joined:
    Jun 26, 2008
    Messages:
    5,581
    Ratings:
    +24
    What about exterior "no more nails"? Blinking 'eck. What do ya want-us to do it for ya???
     
  3. Little Miss Road Rage

    Little Miss Road Rage Gardener

    Joined:
    Jul 1, 2008
    Messages:
    1,480
    Ratings:
    +1

    Yeah he's just waiting for us to offer :lollol::lollol:
     
  4. Little Miss Road Rage

    Little Miss Road Rage Gardener

    Joined:
    Jul 1, 2008
    Messages:
    1,480
    Ratings:
    +1
    I do think u should post a pic of yours Claire
     
  5. lollipop

    lollipop Gardener

    Joined:
    Jun 26, 2008
    Messages:
    5,581
    Ratings:
    +24
    no way Jose-it's embarassing
     
  6. lollipop

    lollipop Gardener

    Joined:
    Jun 26, 2008
    Messages:
    5,581
    Ratings:
    +24
    Kristens is very "passage from India" whereas mine is very much "a ginnell in Rawtenstall" lol
     
  7. Little Miss Road Rage

    Little Miss Road Rage Gardener

    Joined:
    Jul 1, 2008
    Messages:
    1,480
    Ratings:
    +1
    lol it's gone quiet maybe he's gone to do it
     
  8. lollipop

    lollipop Gardener

    Joined:
    Jun 26, 2008
    Messages:
    5,581
    Ratings:
    +24
    I should jolly well think so Kelly. I don't know................blooody fellas
     
  9. Little Miss Road Rage

    Little Miss Road Rage Gardener

    Joined:
    Jul 1, 2008
    Messages:
    1,480
    Ratings:
    +1
    Yeah gotta stand and look at it for hours before they start lol
     
  10. Kristen

    Kristen Under gardener

    Joined:
    Jul 22, 2006
    Messages:
    17,534
    Gender:
    Male
    Location:
    Suffolk, UK
    Ratings:
    +12,671
    Amazing what you find on the Interweb, innit? :)

    Nice concrete shuttering. I've seen American blogs use those sort of cardboard tubes before, probably available in the UK

    [​IMG]

    Also found a tidy way of doing it using some simple wood shuttering to get the surface looking smart. I think my holes will be oversized, and thus I prefer the cardboard tube approach - except that this article says the footing should be wider at bottom (cone shaped):

    http://www.doityourself.com/stry/gazebo

    "The footing holes should average 12 inches in diameter, be at least 3 feet deep and be larger at the bottom than at the opening. Fill the base of the hole with several inches of compacted gravel. In cold climates, footings should extend 6 inches below the frost line or comply with local codes.

    Make 12- by 12-inch square wood frames from 2x4 lumber for each footing to contain the concrete at ground level. Restring the gazebo layout now so that the frames can be centered for positioning the anchor bolts and posts later. Level the frames to each other and use backfill or stakes to secure the frames while pouring the concrete.
    "

    [​IMG]
     
  11. shiney

    shiney President, Grumpy Old Men's Club Staff Member

    Joined:
    Jul 3, 2006
    Messages:
    67,277
    Gender:
    Male
    Occupation:
    Retired - Last Century!!!
    Location:
    Herts/Essex border. Zone 8b
    Ratings:
    +134,128
    That looks like a good system, Kristen :thumb:

    I used a similar principle of 'wider at the bottom' when putting our pergola on paving. We preformed the concrete base with a 1" diameter steel pole in it - protruding 3" above the top. Then drilled a hole in the bottom of the upright and sat it on top. Obviously we didn't have to sink anything into the ground as it was on paving but we did have to level the uprights because we built the paving to have a slight slope for drainage. We used the old fashioned building trick of levelling by hammering slivers of slate under one edge of the concrete base.

    [​IMG]
     
  12. Little Miss Road Rage

    Little Miss Road Rage Gardener

    Joined:
    Jul 1, 2008
    Messages:
    1,480
    Ratings:
    +1
    Well it's not gonna blow down Kirsten and I'd hate to be the new owner and decide I didn't want it lol
     
  13. theruralgardener

    theruralgardener Gardener

    Joined:
    Jul 22, 2009
    Messages:
    392
    Location:
    Otley, West Yorks
    Ratings:
    +149
    Not going to blow down for sure! I am trying to get my head round why such a depth of concrete is advised here? I can see why the 'wider at the bottom' idea might provide more stability, but isn't the depth really all about load bearing? I mean your fixing bolt thing only goes in a short way, so beyond this point, the concrete is purely acting as a foundation isn't it? (Seems ever so much for a pergola upright!) Also, just wondering...didn't you say your panels were 2"x2" with trellis between? How will you fit them into those 100mm footplates..or will you need some new uprights to fix the panels to?
     
  14. JWK

    JWK Gardener Staff Member

    Joined:
    Jun 3, 2008
    Messages:
    34,049
    Gender:
    Male
    Location:
    Surrey
    Ratings:
    +54,090
    It all looks over the top to me too, there's more concrete there than in my house foundations!
     
  15. Kristen

    Kristen Under gardener

    Joined:
    Jul 22, 2006
    Messages:
    17,534
    Gender:
    Male
    Location:
    Suffolk, UK
    Ratings:
    +12,671
    "It all looks over the top to me too, there's more concrete there than in my house foundations!"

    :hehe:

    I know nought about foundations. The piccies are from USA I think, so probably where there is permafrost or somesuch ...

    Anyways, I have a spit of loose topsoil, and then clay. The post isn't going to carry a lot of weight (bit of a struggle for two people to carry one panel; a panel has two legs but only one horizontal, so allowing for the weight of plant I reckon each concrete "leg" will have to support a weight equal to "a bit of a struggle for two to carry". Not much then ...

    Dunno about depth though, presumably got to get to the bottom of the spit, and a bit more besides? Put some rubble in the bottom (got plenty of that!)?

    Then it needs to cover the area of the two 2x2 members forming the vertical.

    I can't put my hand on the scribble of the dimensions I made (and the "panels" are still over-there, rather than transported to over-here), I reckon its got to be 2'6" or so.

    [​IMG]
     
Loading...

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice