Page 77 - BHGS Horticultural Catalogue

POLYTUNNEL SIZING | 75
Measuring for your Polytunnel Cover
Measure over the circumference of the polytunnel using a reel tape measure (or a piece of rope) and take into account the following allowances.
Add
Trenching into the ground
1m per side
Fixing to a base rail
0.5m per side
Fixing to a side rail
0.5m per side
Fixing into a gutter
0.5m per side
Single Span Polytunnels
Width of Polysheet
Width of Polytunnel
Trenched
Ground Rail
Side Rail
4.3m (14ft)
9.2m
9.2m
7.3m
5.5m (18ft)
11.1m
11.1m
9.2m
6.4m (21ft)
14m
11.1m
9.2m
7.3m (24ft)
14m
14m
11.1m
8.2m (27ft)
-
14m
11.1m
9.1m (30ft)
-
14m
14m
Multi Span Polytunnels
Width of Polysheet
Width of Polytunnel
Trenched
Ground Rail
Side Rail
Gutter to Gutter
6.55m (21ft 6in)
11.1m
11.1m
9.2m
9.2m
6.55m (21ft 6in)
14m
14m
11.1m
9.2m
Remember to make allowances for the ends of your polytunnel.
As a general rule when xing tunnels to an end frame add 3m (10ft) per end, e.g. for a 30m (100ft) tunnel you should order a 36m (120ft) long polysheet (30m + 3m for each end).
**Measurements are to be used as a guideline ONLY, please contact us for further information, incorrect orders cannot be refunded.
All polytunnel photos are courtesy of www.polyhouses.com 01243 55 44 55 | info@polyhouses.com
Evesham: 01386 444100 Chichester: 01243 578800 Hayle: 01736 755766
FABRICS & POLYTHENE