A mixed bag
If you are looking for building materials at budget prices then Materials Market are certainly worth considering. However, I've had mixed experiences with one order going well and the other order less well. Out of 4 items on the second order, only one was delivered successfully, they sent the wrong item for another and they just decided that they couldn't supply the other two items. When I contacted them they didn't seem to want to take responsibility for the wrong item and seemed to be expecting me to pay to send it back. Customer services seemed in disarray - they even called me back later about someone else's order. In future I'll probably pay the very slightly higher prices at my local supplier who have great customer service.