Our Quality Raised Bed Liners Have Been Carefully Designed To Fit Our Range Of Allotment Wooden Raised Beds Standard Wooden Raised Beds With Various Sizes And Depths To Provide Added Protection If The Beds Are On Hardstanding Areas And Also To Help Water Retention And Prevent Soil Washing Out Of The Raised Beds.wed Thoroughly Recommend You Use One Of Our Thick, One Piece, Polypropylene Fabric Raised Bed Liners When Growing In Raised Beds On The Patio; The Porous Material Of The Liner Will Help Water Retention, Prevent The Compost And Soil From Running Out Onto The Hard Surface - Possibly Causing Staining - And Will Also Help Prevent Weeds From Growing Through From Beneath, A Further Reason For Using A Liner If Your Bed Is Positioned On Soil Or Turf. our Raised Bed Liners Come In A Wide Range Of Different Dimensions. The Raised Bed Liners Will Fit One, Two And Three Tier Versions Of The Allotment And Standard Beds (15cm, 30cm And 45cm).raised Bed Liners Manufactured From Polypropylene Fabricwill Fit Single, Double And Triple Tier Versions Of Allotment And Standard Wooden Raised Bedsliners Help To Regulate Drainage And Retain Waterplease Note: Liners Are No Longer Supplied With Corner Loopsraised Bed Soil Is Notorious For Drying Outliner Will Retain Fine Sand And Compost Used When Growing Certain Vegetables E.g. Carrotsideal If The Bed Is Located On A Patio, In A Courtyard Or Even On Tarmachelps Prevent Leaching Of Soil And Nutrientsthreat Of Staining Patio Or Other Hardstanding Area Is Reducedliner Helps Suppress Weed And Grass Growth When Bed Is Positioned On Soil Or Turfthe Raised Bed Liners Are Available To Fit Beds Of The Following Sizes (actual Liner Dimensions Will Be Smaller):-0.6m X 0.6m (2ft X 2ft)0.6m X 1.2m (2ft X 4ft)0.6m X 1.8m (2ft X 6ft)0.6m X 2.4m (2ft X 8ft)1.2m X 1.2m (4ft X 4ft)1.2m X 1.8m (4ft X 6ft)1.2m X 2.4m (4ft X 8ft)1.8m X 2.4m (6ft X 8ft)please Note: On Occasion If A Certain Size Liner