Greenhouse base bolted to a wall??

In the desperate hope I'll get an answer..ideally from someone with a greenhouse.

Can I simply put/bolt a greenhouse + the base onto a small brick wall.

I've seen greenhouses, mine is yet to arrive, i know that..perhaps...the base may look..odd? fitted onto a brickwall..and perhaps best not use the base???? you tell me? But purely from the pov that the base may make it more secure...

What'd you all think? Those in the know...   Would it be ok to literally bolt the base onto a brick wall ( say 5  bricks high..double row ) and am i asking for trouble?

Aware of the problem with the sliding door...but worst case scenerio is I alter the slider..somehow. if anyone else has done it - with the base.

THANKS for any advice given.


  • artjakartjak Posts: 4,168

    We need to know the design of the greenhouse and a photo of the wall. Posibly send the forum a pic from the greenhouse brochure?

  • marshmellomarshmello Posts: 683

    Yes you can ! They're was a few gardener's at our allotments who had done the exact thing. However, when we had the strong storms, the greenhouses blow off.

    I set mine into concrete with long nuts/bolts and big washers, when the mix was still wet. That is not going anywhere, I can tell ya.

  • Birdy13Birdy13 Posts: 531
    Is the idea to get more headroom? If you haven't yet built the wall and you are going to dig proper footings for the wall I guess you could do it. With careful planning you might be able to set long roof ties between the two 'skins' of brickwork (which I presume is what you mean by 'double row') and, even better, rooted in the concrete footings if you can. The ties would have to be sited at each corner exactly positioned to allow bolting to each corner upright. This would achieve the same effect as setting long bolts in wet concrete. Each corner of my own 8'x6' lightweight greenhouse is only fixed to the ground by a bolted on 'foot type' structure set in a 6-8inch cube of concrete poured into the earth. It's been fine for more than twelve years without any other footings. Mines not on a wall though. Hope this helps. B13.
  • garjobogarjobo Posts: 86

    Thank you for the repies. As for design of the greenhouse...its nothing special ( although had to pay extra for safety glass - kids! )...a standard 6ft x 10ft aluminum greenhouse with one slides door.

    My main Question is, the BASE....shall i use the base..and secure it onto the brickwork. Or throw the base away kinda thing.

    Aware of the sliding door problem...a fiddly thing to sort out nothing more hopefully.

    Yes - wanted more height..and also this extra warmth thang..bricks maintaining a little warmth..and to be honest...the look of it. Always liked a greenhouse on bricks..although using a base..may take look away.

    Any photos you have yourselves ? been checking on internet and surprisingly found little esp on youtube...thought there would be more How To guids on there. But nothing really.

    I have a concreate base right now. All i was going to do was, get a load of bricks, only about 5 high, two rows ( will look at that sugestion of what to put between the walls )...and SIMPLY SECURE the BASE..and/or THE ALUMINUM FRAMWORK onto it with..RAW BOLTS - perhaps? no builder..but happy to take time and a spirit level and give it a go..but i need to know if im making mistake doing it?

  • garjobogarjobo Posts: 86

    BIRDY13 - reading again your reply ( and appreciate yours is not on a wall ) but any photos of how you secured yours? just hard to understand via reading it/imagining it. Keen to secure this properly.

  • figratfigrat Posts: 1,619

    Hi again! 

    I do think you would be wise to use the base, as it does give the greenhouse more rigidity. And it has the fixing holes ready drilled for fixing to the ground/concrete/wall...

    I don't think it would detract from the final appearance of the construction - indeed, I think that NOT using it would give you the added problem of how to attach the superstructure.

    I've been poking round t'internet as well, and found nothing!

    But there's this link (on this site) on general greenhouse construction.

  • garjobogarjobo Posts: 86

    THANKS for the advice, glad to read theres already holes in the base for concrete/brick.

    YES..extra expence, and work..but i think worth it in the end..long term don't you.

    Will look at that link ( when not in work! on lunchhour ) thanks.

    Thanks Figrat for taking the trouble to poke around on site on my behalf.

    Whilst im at it  - the brick layer was thinking about...simply..two brick layer..side by side...simple as that..and ideally secure the base/structure in the middle of the the brick. Again, im no bricklayer but hopefully its straightforward enough...i wonder if i need to put those 'ties'..between the hold wall together..


    Once done...i will take photos..before it collaspes.

  • AnselliaAnsellia Posts: 6

    Hi I am plannig on doing the very same thing so I will be keen to see how your project goes.

    I have a 6x8 aluminium green house that I would like more head height in as I hang my tumbling toms and orchids that summer outside. Also like my climbers and vines to have more room. 

    I will be digging down about a foot and a half plus a but more for the wall footings. I am recycling old bricks from a garden wall so it depends how far they stretch as to how many courses high I go. The base inside will be considerably lower than ground level outside so it will be a step up and then a couple down. I will bolt it directly onto the wall.

    All my dug out topsoil which was imported by a previous owner who raised the whole garden is going into a huge raised bed which I have just ordered the sleepers for. That will be where my veg is going right next to the green house.

    Im going to be very busy as I do all the DIY ! image


  • garjobogarjobo Posts: 86

    Thanks for keeping this topic alive..i am surprised that ive yet to see others greenhouse on bricks photos - am i the only one who wants to do this!!

    Well, Ansellia - i dont want the step up and step down scenerio..quite how Im going to extend the door etc..i havent a doubt will part with a few extra pounds in order to get it right - usually the way!

    Although a new member, once my greenhouse is up n running i no doubt will become a regular on here - asking the questions..for a start..what best to keep your greenhouse warm - cheapest option of course!

    Once my greenhouse arrives, I will make a start and take photos of course. In my head I have it al planned in practice..not a clue. However, this weekend is a busy one - i have 27 shurbs to plant somewhere in my garden ( i got them for £2.50 a pop!! including an Acer ( looks dead admittely ). Always a good feeling getting plants at a fraction of the price. And even Homebase ( not the cheapest!! ) was handing out sand/pepples bags for only £1 a go!! bargin!! find cheap bricks!!

  • Birdy13Birdy13 Posts: 531
    Sorry, can't photograph method of securing - it's all underground. Immaterial anyway as you say you have the concrete base already. But you might still be able to use roof ties between the two layers of brick. Suggest you visit builders merchant to see different designs available. They're usually just strips of mild steel, if I remember correctly, with holes to screw to a house roof (but you would not be doing that) with one end cemented into brickwork to prevent the roof being lifted or removed by high winds. Depending where you live you might find a metal merchant willing to cut strip metal to size for you - might even drill it for you too. (Or maybe such service is a thing of the past!) Worth looking through yellow pages or Internet. Building tip: re your outline for brickwork, you can check that any rectangle is square by shifting it around until the DIAGONALS are equal in length. Measure with any cord that doesn't stretch, two people needed, one at each end. Best of luck. B13
  • Birdy13Birdy13 Posts: 531
    Hi Garjobo. I took a photo of the corner of my greenhouse, but was unable to paste it into this message so I'll have to describe it.

    The bit I can see above ground shows part of a piece of angle iron (about 30-40 mm width on each of the two sides which wrap round the two sides of each corner of the base frame and bolt on to it.

    Under the ground each piece of angle iron projects probably about a foot into a hole filled with concrete. By memory I think it was roughly cuboid in shape with sides about 8 inches (20cm) by 8 inches and a depth of about 12 inches. The top of each 'cube' of concrete was smoothed off at ground level EXACTLY LEVEL TO EACH CORNER. That's important: the base-frame, or in your case the brick wall, then the base-frame on top, will receive the structure of the greenhouse totally square in every dimension. If it's out of square anywhere you might have a nightmare of a job getting all the components to bolt together properly. Since your base-frame is going to sit on a wall it will be crucial that it's the wall's corners that are all level with each other for the reasons given above. A good 'bricky' should have no problem with achieving that. B13
  • Birdy13Birdy13 Posts: 531
    Just read again one of your earlier posts mentioning 'ties'. I was not referring to wall ties - the walls won't be high enough to need them. I was just suggesting roof ties as a source of strong strip metal to bolt on to the corners and then either concrete them them into the ground as I did or in your case imbed them between the two brick walls. That said, you still could if you wanted tie the two skins of brick wall together here and there with wire wall ties but I doubt if it is necessary. Sorry about the confusion. B13
  • garjobogarjobo Posts: 86

    I have tried to familarise myself with these roof ties...I was thinking How am I going to drill into a newly built short wall without dislodging the bricks esp the corners! and also, the bricks im looking ones naturally!..have 3 holes in them..standard type..SO - any thoughts?

    Or, are these roof ties the answer..and i connect base of greenhouse to them perhaps? At a loss.

    But I am determined to press again, once greenhouse arrives and I can measure up perferctly ( im no builder mind you!! ) but yes..I will take photos - as all a learning expericance isnt it.

    But, others thoughts more than welcome on this.

    I was tempted to build the outer wall in brick and inner wall in breezeblock..saving cost..painting the innerside...but i type..No - I love the look of a brick wall inside a greenhouse! As you can see im at a crossroad..and the thought on the door extension etc ..who knows!! but im determined NOT to have a step in/out!!

    Anyway, yes, any thoughts on best way to secure this Base of greenhouse to the wall? Or do i simply secure using these roof ties then?

  • garjobogarjobo Posts: 86

    Dragging this out ..hopefully will get a further responce from some kind soul..

    Bricks too breezeblock is the way to go. SO - standing on edge - longways ( Instead of sitting flat )..i think just the one height would be enough..but a double thick wall.

    SO - ...would that suffice? How'd I drill into the edge of the breezeblock - without it smashing - and attaching the Base of greenhouse?

    A double thick wall of breezeblocks - 1 high - anything worthwhile putting inbetween the breezeblocks? These roof ties..still getting my head around??

  • Birdy13Birdy13 Posts: 531
    As brief as I can make it...I'm not a builder either but have worked with some heavy materials. Don't try to make unsuitable materials (usually cheaper) do the job of the more appropriate materials. It could become a false economy. However, I this day and age of so much wastage you might still find the right materials being thrown away somewhere if you look around.

    Breezeblock ( ie the old fashioned black cinder type of material) relatively light, good in compression, quite fragile in expansion (eg could split if screwed into too near the edge); also easy to knock bits off (eg wheelbarrow going too close round its corner); makes a hell of a mess if cutting with angle grinder (I once filled a room with black dust in 2 seconds flat when cutting a window out of a wall built with breezeblock.)

    Bricks: denser material, excellent in compression; less fragile than breezeblock in expansion, stronger when knocked accidentally, cuts quite well and takes raw plugged screws well. They can get hairline fractures though if dropped which can show up when you try to drill into them later (answer: don't drop them).

    Engineering bricks: very much denser and heavier, stronger in all the above respects. Don't absorb water like ordinary brick, so less likely to rot. therefore used to top off a brick wall. But, more expensive!

    Consider looking around demolition sites for secondhand bricks. Not sure if this happens these days but you might even get them free! (I built a wall this way years ago) But you'd need to have transport.

    Don't get hung up over these roof ties. All you need is a way of ensuring your beloved greenhouse doesn't end up next door after high winds. You just need some way of securing the light, greenhouse structure, which can catch so easily catch the wind, to your much heavier brick wall. Any method that links the two will do providing the material used to link them is strong (eg metal) and that the method of the connecting material to both the greenhouse and its wall is also appropriately strong (eg bolts and cementing in, respectively).
  • garjobogarjobo Posts: 86

    Thanks once more for the reply.

    I have been phoning around re bricks for sale..not much joy im afraid. Due to cost and transport..breezeblocks will have too be - appreciate what you mentioned - i am no builder but realise breezeblocks crumble.

    I was thinking..always a worry when i do that!..two breezeblocks high ( flat ways lying ) and then 1 layer of bricks above. Now..this wont be pretty!..but perhaps more secure.

    I dont know..perhaps just breezeblocks and drill in the middle. Afterall only today i walked past a newly erected greenhouse and noticed that not only did it look like it lent to the left..but the chap had mounted it on a slight sloping garden with some short sleepers literally thrown on the ground! - even i know sleepers swell ( i have some ) me..i have a cement base already, part hidden by a garage cement a couple of breezeblocks and then the very least its better than the one i saw today!

    Greenhouse arrives Wednesday!! woohooo!!

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