What's the best adhesive for sticking down wood blocks and where do I get it from ? The blocks are teak 9inch x 3 inch x 1.25 inch thick. Each block has a small dove tail on the bottom. Blocks have been reclaimed and did have a thick layer of bitumen on the bottom of them. Bitumen has been removed apart from a very thin layer (probably less than 0.5mm thick). The floor they are going down onto is plywood.