Replacement Covers

What size of cover do I need?

To calculate the size of polythene or net sheet needed to cover your polytunnel, please enter the information to the right and click 'Calculate'. Please Note: Our calculations are based on a polytunnel with a door at each end.

Please feel free to contact us by e-mail at or by telephone on 01282 811250 if you are still unsure as to the size of cover needed.

Alternatively, if you know the size of cover needed or if you would like to buy polythene or net by the metre, please see our range of Polythene Films and Netting in our Accessories pages.

Replacement Covers

Distance over hoop

Length of Polytunnel

Height of Polytunnel


Please note: calculations are based on a polytunnel with a door at both ends.

Thermal Anti Drip Polytunnel Covers

Here at Premier Polytunnels we pride ourselves on offering the very highest quality of Thermal Anti Drip polythene - the preferred cover of UK growers. Our Thermal Anti Drip films are the first in the UK to include NEW 5-layer co-extrusion technology, making for a more efficient polytunnel cover.

Choose from a 600 gauge/150 micron polythene film with a 4-year warranty against UV degradation or a 720 gauge/180 micron polythene film (20% thicker than many other films) with an extended 5-year warranty.

Net Polytunnel Covers

Here at Premier Polytunnels we are able to produce a one-piece sewn net polytunnel cover (8-10 year life).

This green 47% shade net is ideal to be used on a polytunnel with or without a polythene cover in place. Used on its own a net cover provides shade, full ventilation, significant reduction in wind speeds, and still allows rainwater to filter through to the plants. It also provides excellent crop protection from birds and insects.

Placed over a polytunnel with a polythene cover in place, the net provides shade and significantly reduces the temperature inside.