These are Red Onion Chutney stuck with Varnish pending Grout, Cement & Water resistant Paint, Radiator Paint. Experience causes me to recommend DIY Panels that you can ask your Shed builder to include. The Walls are coming on, small Fabric Strips dipped in Cement, applied to a Sheet stapled to the Wooden Frame, that result in Hardboard of various strength depending on the effort.
As the Fabric Walls thicken the wonderful Sunset will stop lighting the Room in the Door Corner so the Jars are going there.
God said construct suddenly & show because Scottish Monkies steal your freinds taking pictures as well as information 
