3/4 Span

If you want to build your glasshouse or orangery against a wall, but it’s not high enough for a lean to, then a 3/4 span (or offset ridge) is an excellent option. A 3/4 span greenhouse is attached to the wall using a valley gutter which is strong and wide enough to walk in for ease of maintenance. You may have an idea for the perfect glasshouse but a less than perfect site. Our impressive greenhouses can be designed for slopes, to look “straight” in an “out of square” garden and even to go around corners! If you have a preference for an attractive 3/4 span design but would like a free standing greenhouse, we can do that too.

Griffin’s glasshouses offer these gardener-friendly features:

  • The beauty of wood without the maintenance headaches.
  • Maximum ventilation so that your plants won’t dry out or suffer the effects of humidity.
  • Large covered water storage tanks so that you can store clean soft rainwater inside your greenhouse for watering your plants without shocking the roots at the height of summer.
  • Flexible shelving and benching to accommodate changes to your growing schemes.
  • Cold frames with lids especially designed not to lift off in high winds.
  • Doors designed to fit a wheelbarrow.


Every glasshouse is unique and so are your needs as a gardener when it comes to creating the perfect environment for your plants and accessorising your glasshouse in style. Whatever your chosen style and planting plans, we can manufacture or source a full range of accessories on your behalf or put you in touch with other recommended suppliers. From propagators to potting benches and floor grates to grow lights, we will ensure that your glasshouse is fully equipped with everything you need and share the benefit of our advice and experience to help you choose (and spend) wisely.

Other Greenhouses