• RHS Endorsed
  • PEFC Certified
  • Made in Britain

RHS Planthouse - Grand Portico

Product no.: GPP0918

The main advantages of choosing an RHS 'Grand Portico Planthouse' model is the additional eaves height of 6 ½’.
This and the increased height mean the structure can be used for more exotic plants such as banana plants or fruit trees.

Build your greenhouse
Price incl. VAT

From £31,173.59

This product cannot be ordered online. Contact us via the button below to order.

Estimated sent in week 13

The main advantages of choosing an RHS 'Grand Portico Planthouse' model is the additional eaves height of 6 ½’. This and the increased height mean the structure can be used for more exotic plants such as banana plants or fruit trees.


The RHS Portico Planthouse has a width of 14ft 5in and the length starts at 12 panels (4674mm). Panels can be extended a maximum of 20+ panels.


The structure comes with Cedar panels at the bottom level as standard however can be built with a low dwarf wall if preferred.


As with all of our greenhouses, the RHS 'Grand Portico Planthouse' comes with a 12 year structural guarantee, giving you added security in your purchase.


Please Note: On all structures with a Low or Dwarf Wall the folding staging will not fold down. This still allows for a large amount of storage under the staging.


Gabriel Ash represents the finest of wooden greenhouses.

If you would like more information, please contact us via e-mail enquiries@gabrielash.com or call 01242 662926.

Alternatively, we will happily send you our greenhouse brochure.

*Prices seen here are applicable to UK residents only.

We have many Gabriel Ash distributors who are based outside of the UK and will be more than happy to assist you with your Gabriel Ash enquiry. Please refer to the Gabriel Ash international distributors for more information.

NameRhs Planthouse ' Grand Portico' By 18 Panel - Cedar Base Boards
BrandGabriel Ash
Length metric6.970
Width metric4.388
Width imperial14'4"
Number of windows10
Wall typeCedar base boards

Here you will find our guide(s) and other documents for this house. We continuously update the version when there are changes.

RHS Planthouse - Grand Portico

Estimated sent in week 13

From £31,173.59

Price incl. VAT