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Extra Large Timber Greenhouse with Safety Glass 37'9 x 13'1

Starting at: 11,044.00

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For the really keen gardener this Extra Large Timber Greenhouse with Toughened Safety Glass will give you all the growing space you need yet it still retains all the good looks of our smaller greenhouses.  Larger than your average greenhouse, this Extra Large version has a generous ridge height which allows tall plants to be grown not just in the centre of the greenhouse but down the sides as well. The price includes numerous extras as standard such as extra wide lockable door for easy access, damp seal, staging down one side, automatic roof vents and installation. Each greenhouse comes with a turned apex finial to add to that timeless, classic look.  Constructed in the UK from thermally modified Redwood Pine which is used extensively in Scandanavian countries because it is a much more stable product than ordinary kiln dried pine. The process involves baking the wood at a high temperature in a sealed oven from which the air is pumped out. The result is a timber which has improved qualities and high durability with almost no warping, shrinking or swelling. Another advantage is an excellent finish which needs no preservative treatment saving time and money year after year.  If you prefer a painted finish the super smooth surface makes painting so much easier (similar to painting metal). This process also changes the colour of the pine to make it similar to that of Cedarwood. This colour can be maintained by occasionally applying a coat of standard timber treatment but this is optional. Left untreated the wood will age to a lovely grey colour, as seen in modern sustainable architecture. This greenhouse is also available factory painted in a choice of heritage colours (painting costs approx 25% extra but please contact us for a quote if this is of interest

These lovely greenhouses are a joy to own and we guarantee you will be delighted with the quality and workmanship which is far superior to the mass production models offered by the big DIY stores and supermarkets. Click Customer Reviews for latest comments from verified purchasers. Price includes Vat and Installation to most UK postcodes, other areas will need an individual quote. At the Checkout you can opt to pay just 20% deposit and leave the balance due until the building is ready for delivery (we are so sure you will be delighted with your new purchase that you can opt to pay when the installation team have finished building your new greenhouse)  


  • Dimensions: Length 11520mm (37'9"), Width 3900mm (13'1"), Ridge Height 2900mm (9'6"), Eaves Height 1730mm (5'8"), Door Height 1980mm (6'6"), Door Width 1200mm (3'11"). Base not provided. Model shown may be a different size
  • Redwood Pine Glazing Bars 58mm x 34mm finished size
  • The inward opening door has a aluminium handle and mortice lock fitted
  • The bottom 12mm tongue and groove boards are 390mm long, all boards fixed with stainless steeel nails
  • Glazed with toughened glass which is slid into a groove and sealed with quality silicone
  • Side glazing is 1220mm x 610mm
  • 12 top vents sealed with timber capping and fitted with automatic openers
  • Full length wooden staging to one side with centre support
  • Damp barrier: 20mm black PVC section is screwed to the bottom
  • Classic appearance with a turned apex finial for that finishing touch

Optional extras:

  • Extra staging so your greenhouse has staging down both sides (staging down one side is included as standard)
  • High level shelf for the full length of the greenhouse, half the width of the staging which can be fitted on either side (shown below)
  • Side opening vent for extra ventilation (manually operated)
  • Hunter gutter system, 76mm width, down to the ground or to a water butt (if this is available at the time of installation the fitters will ensure the gutter system flows into it) (shown below)
  • Ornate Black Door handle
  • You can order a Potting bench and/or Cold Frames to match your new greenhouse and delivered by the installtion team. Free delivery is only available if it is delivered with your greenhouse or potting shed. Click this link  Potting Benches and Cold Frames for more details on these products. Please note, due to the weight, the shipping charge for these items is high if you decide to buy one at a later date



Delivery and Installation: All buildings are built to order and supplied in approximately four weeks from your base being ready, but the lead time can extend to five or six weeks during busy periods such as March to May. The manufacturer will contact you shortly before delivery to make sure the base is ready to arrange a suitable day for installation. The installation team take approximately 2 to 3 hours to build your greenhouse and all customers so far have been highly delighted with their purchase but each building includes a 12 month guarantee


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