Field Notes

All 6mm polycarbonate aluminium arch spacing assembly base bq British weather buying guide buying-guide calendar cold-frame comparison construction cost decision diagnostic diy engineering foundation FSC pine garden architecture glazing grades greenhouse cost greenhouse engineering greenhouse installation greenhouse-position growing-guide growing-tips heating heavy duty polytunnel informational installation insulation longevity maintenance mini-greenhouse monthly-tasks nordic NORDIC greenhouse permitted-development placement planning polycarbonate polycarbonate greenhouse polytunnel polytunnel alternatives polytunnel buying guide polytunnel UK polytunnel vs greenhouse pricing rhino Scandinavian design shelving staging SteelRoot storm timber tomatoes UK gardening uk-2026 uk-compliance uk-garden uk-gardening uk-weather warranty wind wind load winter winter-greenhouse wooden greenhouse wooden-greenhouse