Wowsers.  Just doing some back-of-an-envelope sums. The cost per square foot of heated propagating space is extortionate, if you buy an off the shelf heated propagator like this one which comes in at about £30 per sq ft.

If I make one myself as planned, including all materials costs, I reckon I can make a large bench for the equivalent of £7 per square foot of propagating space. That is less than a quarter of the cost per square foot if you buy one. And mine will be have a much higher capacity. Very happy with that, and I’ll have something to do as well. Buying the wood tomorrow! 

I’ll be back with a step-by-step build guide soon.