For those who have invested heavily in hydraulic jacks then rather than lumps of wood these Outrigger pads https://www.outriggerpads.co.uk/product-category/motorhome-caravan-pads/ might be a good, tough, waterproof, smart accessory option? They were launched at the February NEC Show (by a company who already make these for commercial equipment) in reply to a demand from the motorhome & caravan sector. On the stand all types (flat, square indent & round indent) were selling for £60 a set of 4 but currently a lot more (plus VAT) on their website. Have emailed them today (finally catching up after bad colds ) to find out what deal they can offer for Fun & RVOC members so will update here once we get a reply. "MOTORHOME & CARAVAN JACKS Our Motorhome and Caravan stabiliser jack pads are perfect for using on grass, gravel or soft ground. Made from extremely high quality, high density polyethylene (HDPE), our caravan jack pads/spreader mats won’t splinter or corrode delivering tough and stable support for your mobile home, whatever the ground conditions. Perfect for stabilising your motor home, caravan, RV and camper vans jack and levelling legs. Available in three styles. Light and easy to handle, they can be carried, positioned and stored with minimal effort."