Charities can register with the Warp It redistribution system for free. You'll be matched with organisations to get office furniture, fixtures and fittings, and other items you need. 

You can even find clothing, medical equipment and stationery. 

By redistributing unwanted items, it helps organisations to save on the costs associated with sending assets to landfill and contributes to their sustainability plans and lowering their environmental impact. Similarly, charities benefits by receiving furniture, equipment, and other items that they need to operate smoothly without having to dip into limited funding. It’s a win-win for everybody involved and, of course, is going a long way to helping to save the planet.

See more at: https://blog.warp-it.co.uk/charities-urged-to-sign-up