I am going to replace my current shed which sits on a concrete pad. This pad has a slope on it and is larger than the shed. The shed has "moved" out of square due to the slope and has suffered with rot on the lower tongue and groove planks due to a combination of rain splashing up and the runners sitting on the concrete.
The guy supplying the new one, which will be very heavy duty and 10 feet long by 6 feet wide, has confirmed the base needs to be completely level and either the exact foot print of the new shed or just a couple of inches larger. I have some solid concrete blocks which are 440 x 215 x 100mm. I would appreciate any opinions regarding whether the base should be a complete pad of blocks or if I should lay them in individual rows, with narrow gaps between the rows, to allow rainwater to flow down to the drain at the front of the new shed.
Any recommendations regarding whether the base is better to be an exact footprint or have the extra couple of inches around it?
May I also ask for opinions as to whether I should add a damp proof membrane to the top side of the laid blocks so the shed floor sits on this?
Thanks in advance,
Tracey
The guy supplying the new one, which will be very heavy duty and 10 feet long by 6 feet wide, has confirmed the base needs to be completely level and either the exact foot print of the new shed or just a couple of inches larger. I have some solid concrete blocks which are 440 x 215 x 100mm. I would appreciate any opinions regarding whether the base should be a complete pad of blocks or if I should lay them in individual rows, with narrow gaps between the rows, to allow rainwater to flow down to the drain at the front of the new shed.
Any recommendations regarding whether the base is better to be an exact footprint or have the extra couple of inches around it?
May I also ask for opinions as to whether I should add a damp proof membrane to the top side of the laid blocks so the shed floor sits on this?
Thanks in advance,
Tracey