Also known as a plinth or upstand, a base is the frame upon which a greenhouse is installed and, subsequently, will sit on top of once it has been assembled. Most bases are approximately 5 inches tall, raising the greenhouse’s overall height by around 12cm. You will need to secure your base to a suitable foundation or floor (it is important to note that the base and foundation are not the same) in order to ensure maximum stability. 

What Is A Foundation or Floor?

A greenhouse foundation is the larger surface area upon which your greenhouse will be situated. We recommend either laying or using pre-existing concrete, paving slabs or decking for this. The most important factor, however, is to ensure that the foundation is 100% level and we strongly suggest using a spirit level to check this, otherwise, it can cause a multitude of problems!Why Is It Important to Have a Solid Foundation/Floor?

  • To increase security: over the years, your greenhouse will be exposed to the harsh elements, including storms. You need to ensure that your base is suitably anchored to the foundation to maximise stability and avoid damage. In short, if you do not anchor your greenhouse down, it is likely to blow away.  
  • To enable an easy and successful assembly: greenhouses and all their parts are made for level grounds. For example, the sliding door works on rollers which, if the foundation is not completely level, will catch, causing the door to become stiff and difficult to operate. 
  • To avoid warping or stress: unevenness will likely lead to your glass panes or polycarbonate panels blowing out if the frame becomes distorted.

It is possible to install a greenhouse onto soil or turf, however, we strongly discourage this. The main negative is that soft ground is susceptible to subsidence which could cause warping or glass breakage. Other disadvantages include unwanted weed growth and water logging. 

In most cases the answer is yes.
Traditionally greenhouses were designed to fit onto a brick surround but this can be expensive so the manufacturer offers a base which does this job for you.
The manufacturers base is best described as a 5″ metal upstand which has been made to the exact dimensions needed for the greenhouse to sit on (the greenhouse has a lip all around), this has been fabricated to withstand the greenhouses weight and is manufactured to last as long as the greenhouse.
This also has the added benefit of bringing the greenhouse to an acceptable height.
Essential purchase if not building your own surround. (contact us for exact dimensions)

As long as your site is firm and level yes, manufacturers base essential. If you feel the need for extra support/anchoring such as in an exposed area we recommend concreting in at various points.

The greenhouse comes with all fixings necessary and a comprehensive instruction guide with drawings.
Care and attention is a must when handling glass , and as long as you don’t try to rush and skip anything installation can be a rewarding project.
Our tip is to allow enough time, most people with a helper will build a 6×8 in a weekend, never part glaze and leave a greenhouse if you are not sure you have enough time, leave it until the next day.
If this seems a daunting task our Managed Installation service is second to none!

Horticultural is the standard glass supplied with greenhouses, usually the panes are 2ft x 2ft with different shapes cut from these. The major disadvantage with Horticultural is that if broken the panes can leave large dangerous shards.

Toughened safety glass is becoming more and more popular… and more affordable.
Toughened Glass is much stronger than Horticultural, a rough guide is that it will take a hit by a football.
Toughened glass does not break into large shards or crack, it will either take the hit or the whole pane will disintegrate into hundreds of small pieces and greatly minimize injury.
All the manufacturers we sell use Long Pane Toughened Glass which is superior to small panes as there are no overlaps.

It is normal for a greenhouse to have some water ingress, as far as we are aware there is not a mainstream greenhouse on the market that is 100% leakproof.

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